Abstract Real-Time, Continuous Level of Detail Rendering of Height Fields (2009)
Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Nick Faust, Gregory A. Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
Catherine Zanbaka, Benjamin Lok, Sabarish Babu, Amy Ulinski, Larry F. Hodges
Abstract — We describe a between-subjects experiment that compared four different methods of travel, and their effect on cognition and paths taken in an immersive virtual environment (IVE)....
Yves Jean, Larry F. Hodges, Roderic Pettigrew
method for interactive manipulation and animation of
Sabarish Babu, Stephen Schmugge, Tiffany Barnes, Larry F. Hodges
Abstract. We describe an empirical study of Marve, a virtual receptionist located at the entrance of our research laboratory. Marve engages with lab members and visitors in natural face-to-face...
An Extensible Framework for Building (2008)
G. Drew Kessler, Doug A. Bowman, Larry F. Hodges
As virtual environment (VE) technology becomes accessible to (and affordable for) an ever-widening audience of users, the demand for VE applications will increase. Tools that assist and facilitate...
Format: Regular Paper δ Information Processing Branch (2008)
Peter Lindstrom Α, David Koller Α, William Ribarsky Β, Nick Faust Γ, Gregory Turner Δ, ...
We present four techniques for real-time level-of-detail reduction of digital terrain data without loss of visual image quality or detail. Techniques for reducing polygon count based on distance and...
Abstract Interactive Digital Patient for Triage Nurse Training (2008)
Caroline Ziemkiewicz, Amy Ulinski, Catherine Zanbaka, Sonya Hardin, Larry F. Hodges
We present a prototype of a Digital Patient (DP) to serve as an interactive virtual reality training tool for nursing students. Our system allows a nurse to verbally interview, observe, and examine a...
Algorithms For Rendering Cubic Curves (2008)
Benjamin Watson, Larry F. Hodges
We present two integer-only algorithms to be used in tandem for rendering cubic functions and parametric cubic curves with rational coefficients. We then show how to take advantage of curve shape to...
Responses to a Virtual Reality Grocery Store in Persons with and without Vestibular (2008)
Susan L. Whitney, Patrick J. Sparto, Larry F. Hodges, Sabarish V. Babu, Joseph M. Furman, Mark S. Redfern
and the Eye and Ear Foundation. The authors gratefully acknowledge the assistance of Leigh Mahoney and Theresa Yi. People with vestibular dysfunction often complain of having difficulty walking in...
Probe Microscopy, Larry F. Hodges, Grigore C. Burdea, Hunter G. Hoffman, Barbara O. Rothbaum
with VR Clinical virtual reality uses VR in the treatment of psychological and physical disorders. Here we present some applications that therapists have used with patients. 1 Typical office setup...
Exposure in the Treatment of Anxiety Disorders (2008)
Barbara Olasov Rothbaum, Larry F. Hodges, Behav Modif, Barbara Olasov Rothbaum, Larry F. Hodges
One possible alternative to standard in vivo exposure may be virtual reality exposure. Virtual reality integrates real-time computer graphics, body tracking devices, visual displays, and other...
Abstract Real-Time, Continuous Level of Detail Rendering of Height Fields (2008)
Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Nick Faust, Gregory A. Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
Object Oriented Library for Virtual Reality (COOLVR) (2007)
Rob Kooper, Brian Wills, Kevin Hamilton, Don Allison, Larry F Hodges
This paper provides an overview of the Common
Degradation, Color Degradation (2007)
Benjamin Watson, Neff Walker, Larry F. Hodges, Aileen Worden
Two user studies were performed to evaluate the effect of level of detail (LOD) degradation in the periphery of head-mounted displays on visual search performance. In the first study, spatial detail...
Virtual Environments For Exposure Therapy (2007)
Larry F. Hodges, Barbara O. Rothbaum, Rob Kooper, Dan Opdyke, Thomas Meyer, ...
We have conducted a controlled study on the use of virtual reality for the treatment of acrophobia--the fear of heights. Subjects experienced a range of physical anxiety symptoms consistent with the...
Abstract Real-Time, Continuous Level of Detail Rendering of Height Fields (2007)
Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Nick Faust, Gregory A. Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
ABSTRACT Evaluation of a Multimodal Interface for 3D Terrain Visualization (2007)
David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
Novel speech and/or gesture interfaces are candidates for use in future mobile or ubiquitous applications. This paper describes an evaluation of various interfaces for visual navigation of a whole...
Virtual Reality The Virtual Reality Gorilla Exhibit The Virtual Reality Gorilla Exhibit, an (2007)
Don Allison, Brian Wills, Doug Bowman, Jean Wineman, Larry F. Hodges
immersive virtual environment, lets students assume the persona of an adolescent gorilla, enter into one of the gorilla habitats at Zoo Atlanta in Atlanta, Georgia, and interact as part of a gorilla...
An Extensible Framework for Building (2007)
G. Drew Kessler, Doug A. Bowman, Larry F. Hodges
As virtual environment (VE) technology becomes accessible to (and affordable for) an ever-widening audience of users, the demand for VE applications will increase. Tools that assist and facilitate...
Abstract Evaluation of a Multimodal Interface for 3D Terrain Visualization (2007)
David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
This paper describes an evaluation of various interfaces for visual navigation of a whole Earth 3D terrain model. A mouse driven interface, a speech interface, a gesture interface, and a multimodal...
Comparison of travel techniques in a complex, multi-level 3d environment (2007)
Evan A. Suma, Sabarish Babu, Larry F. Hodges
This paper reports on a study that compares three different methods of travel in a complex, multi-level virtual environment using a between-subjects design. A real walking travel technique was...
Can a Virtual Cat Persuade You? The Role of Gender and Realism in Speaker Persuasiveness (2006)
Catherine Zanbaka, Paula Goolkasian, Larry F. Hodges
This study examines the roles of gender and visual realism in the persuasiveness of speakers. Participants were presented with a persuasive passage delivered by a male or female person, virtual...
Virtual human physiotherapist framework for personalized training and rehabilitation (2005)
Sabarish Babu, Catherine Zanbaka, Jonathan Jackson, Taeoh Chung, Benjamin Lok, Min C. Shin, ...
For patients recovering from injuries, or individuals that require a system to provide feedback on aspects of exercise performance, physical therapy sessions with a professional trainer can be...
Catherine A. Zanbaka, Student Member, Benjamin C. Lok, Ieee Computer Society, Sabarish V. Babu, Amy C. Ulinski, ...
Abstract—We describe a between-subjects experiment that compared four different methods of travel and their effect on cognition and paths taken in an immersive virtual environment (IVE)....
The Nave: Design and Implementation of a Non-Expensive Automatic Virtual Environment (2005)
Jensen, Carlos, Pair, Jarrell, Flores, Julian, Hodges, Larry F.
This paper describes the NAVE, an affordable, immersive stereoscopic virtual reality display. The goal of the NAVE is to make key features of the CAVE available to a larger audience and introduce new...
Sparto, Patrick J, Whitney, Susan L, Hodges, Larry F, Furman, Joseph M, Redfern, Mark S
Abstract Background Wide field of view virtual environments offer some unique features that may be beneficial for use in vestibular rehabilitation. For one, optic flow information extracted from the...
Speech and Gesture Multimodal Control of a Whole Earth 3D Visualization Environment (2002)
Krum, David Michael, Omoteso, Olugbenga, Ribarsky, William, Starner, Thad E., Hodges, Larry F.
A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, exibility, and user freedom. This paper investigates the design of such an interface...
Situational Visualization (2002)
Krum, David Michael, Ribarsky, William, Shaw, Christopher D., Hodges, Larry F., Faust, Nick L. (Nickolas Lea)
In this paper, we introduce a new style of visualization called Situational Visualization, in which the user of a robust, mobile visualization system uses mobile computing resources to enhance the...
Evaluation of a Multimodal Interface for 3D Terrain Visualization (2002)
Krum, David Michael, Omoteso, Olugbenga, Ribarsky, William, Starner, Thad E., Hodges, Larry F.
This paper describes an evaluation of various interfaces for visual navigation of a whole Earth 3D terrain model. A mouse driven interface, a speech interface, a gesture interface, and a multimodal...
Speech and gesture multimodal control of a whole earth 3d virtual environment (2002)
David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface...
Speech and gesture multimodal control of a whole earth 3d virtual environment (2002)
David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface...
Speech and gesture multimodal control of a whole earth 3d virtual environment (2002)
David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, flexibility, and user freedom. This paper investigates the design of such an interface...
Sabarish V. Babu, Advisor Dr, Larry F. Hodges, Sabarish Babu
human-virtual human interaction
Speech and Gesture Multimodal Control of a Whole Earth 3D Visualization Environment (2002)
Krum, David Michael, Omoteso, Olugbenga, Ribarsky, William, Starner, Thad, Hodges, Larry F.
A growing body of research shows several advantages to multimodal interfaces including increased expressiveness, exibility, and user freedom. This paper investigates the design of such an interface...
Situational Visualization (2002)
Krum, David Michael, Ribarsky, William, Shaw, Christopher D., Hodges, Larry F., Faust, Nick L. (Nickolas Lea)
In this paper, we introduce a new style of visualization called Situational Visualization, in which the user of a robust, mobile visualization system uses mobile computing resources to enhance the...
Evaluation of a Multimodal Interface for 3D Terrain Visualization (2002)
Krum, David Michael, Omoteso, Olugbenga, Ribarsky, William, Starner, Thad, Hodges, Larry F.
This paper describes an evaluation of various interfaces for visual navigation of a whole Earth 3D terrain model. A mouse driven interface, a speech interface, a gesture interface, and a multimodal...
A Geometric Comparison of Algorithms for Fusion Control in Stereoscopic HTDs (2001)
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
This paper concerns stereoscopic virtual reality displays in which the head is tracked and the display is stationary, attached to a desk, tabletop or wall. These are called stereoscopic HTDs...
Situational Visualization (2001)
David M. Krum, William Ribarsky, Christopher D. Shaw, Larry F. Hodges, Nickolas Faust
In this paper, we introduce a new style of visualization called Situational Visualization, in which the user of a robust, mobile visualization system uses mobile computing resources to enhance the...
Testbed evaluation of virtual environment interaction techniques (2001)
Doug A. Bowman, Donald B. Johnson, Larry F. Hodges
As immersive virtual environment (VE) applications become more complex, it is clear that we need a �rm understanding of the principles of VE interaction. In particular, designers need guidance in...
A Geometric Comparison of Algorithms for Fusion Control in Stereoscopic HTDs (2001)
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
This paper concerns stereoscopic virtual reality displays in which the head is tracked and the display is stationary, attached to a desk, tabletop or wall. These are called stereoscopic HTDs...
Direct Manipulation on the Virtual Workbench: Two Hands Aren't Always Better Than One (2000)
Seay, A. Fleming, Krum, David Michael, Hodges, Larry F., Ribarsky, William
This paper reports on the investigation of the differential levels of effectiveness of various interaction techniques on a simple rotation and translation task on the virtual workbench. Manipulation...
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
Stereoscopic display is a fundamental part of many virtual reality systems. Stereoscopic displays render two perspective views of a scene, each of which is seen by one eye of the user. Ideally the...
The Simple Virtual Environment Library: An Extensible Framework for Building VE Applications (2000)
G. Drew Kessler, Doug A. Bowman, Larry F. Hodges
As virtual environment (VE) technology becomes accessible to and affordable for an everwidening audience of users, there will be an increase in demand for VE applications. Tools that assist and...
Zachary Wartell, Zachary Wartell, Larry F. Hodges, Larry F. Hodges, William Ribarsky, William Ribarsky
Stereoscopic display is a fundamental part of many virtual reality systems. Stereoscopic displays render two perspective views of a scene, each of which is seen by one eye of the user. Ideally the...
Direct Manipulation on the Virtual Workbench: Two Hands Aren't Always Better Than One (2000)
Seay, A. Fleming, Krum, David Michael, Hodges, Larry F., Ribarsky, William
This paper reports on the investigation of the differential levels of effectiveness of various interaction techniques on a simple rotation and translation task on the virtual workbench. Manipulation...
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
Stereoscopic display is a fundamental part of many virtual reality systems. Stereoscopic displays render two perspective views of a scene, each of which is seen by one eye of the user. Ideally the...
The Analytic Distortion Induced by False-Eye Separation in Head-Tracked Stereoscopic Displays (1999)
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
Stereoscopic display is a fundamental part of virtual reality systems such as the virtual workbench, the CAVE and HMD systems. A common practice in stereoscopic systems is deliberate incorrect...
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain partitioned by spheroidal height-augmented quadtrees. While previous methods support terrain...
Can Audio Enhance Visual Perception and Performance in a Virtual Environment? (1999)
Davis, Elizabeth Thorpe, Scott, Kevin, Pair, Jarrell, Hodges, Larry F., Oliverio, James
Does the addition of audio enhance visual perception and performance within a virtual environment? To address this issue we used both a questionnaire and an experimental test of the effect of audio...
Balancing Fusion, Image Depth and Distortion in Stereoscopic Head-Tracked Displays (1999)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
Stereoscopic display is a fundamental part of virtual reality HMD systems and HTD (head-tracked display) systems such as the virtual workbench and the CAVE. A common practice in stereoscopic systems...
Leibe, Bastian, Starner, Thad E., Ribarsky, William, Wartell, Zachary Justin, Krum, David Michael, Singletary, Bradley Allen, ...
The Perceptive Workbench enables a spontaneous, natural, and unimpeded interface between the physical and virtual world. It is built on vision-based methods for interaction that remove the need for...
Huong Q. Dinh, Neff Walker, Chang Song, Akira Kobayashi, Larry F. Hodges
322 subjects participated in an experimental study to investigate the effects of tactile, olfactory, audio and visual sensory cues on a participant's sense of presence in a virtual environment...
Maintaining Spatial Orientation during Travel in an Immersive Virtual Environment (1999)
Doug A. Bowman, Elizabeth T. Davis, Larry F. Hodges, Albert N. Badre
An experiment is presented comparing the effects of various virtual travel techniques in an immersive virtual environment (VE) on the spatial orientation of users. The experiment was designed and...
The Educational Value of an Information-Rich Virtual Environment (1999)
Doug A. Bowman, Larry F. Hodges, Don Allison, Jean Wineman
Information-rich virtual environments consist not only of three-dimensional graphics and other spatial data but also information of an abstract or symbolic nature that is related to the space. An...
The Educational Value of an Information-Rich Virtual Environment (1999)
Doug A. Bowman, Jean Wineman, Larry F. Hodges
“Information-rich ” virtual environments consist not only of three-dimensional graphics and other spatial data, but also include information of an abstract or symbolic nature that is related to...
Maintaining Spatial Orientation during Travel in an Immersive Virtual Environment (1999)
Doug A. Bowman, Elizabeth T. Davis, Larry F. Hodges, Albert N. Badre
An experiment is presented comparing the effects of various virtual travel techniques in an immersive virtual environment (VE) on the spatial orientation of users. The experiment was designed and...
Can Audio Enhance Visual Perception And Performance In A Virtual Environment? (1999)
Elizabeth T. Davis, Kevin Scott, Jarrell Pair, Larry F. Hodges, James Oliverio
r instance, presence can enhance effectiveness of exposure therapy to overcome phobias when the patient is immersed within a simulation of a fearful situation (Rothbaum et al., 1995). Many...
Balancing Fusion, Image Depth and Distortion in Stereoscopic Head-Tracked Displays (1999)
William Ribarsky, Zachary Wartell, Zachary Wartell, Larry F. Hodges, Larry F. Hodges
ing with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications...
The Analytic Distortion Induced by False-Eye Separation in Head-Tracked Stereoscopic Displays (1999)
Zachary Wartell Larry, Zachary Wartell, Larry F. Hodges, Larry F. Hodges, William Ribarsky, William Ribarsky
Stereoscopic display is a fundamental part of virtual reality systems such as the virtual workbench, the CAVE and HMD systems. A common practice in stereoscopic systems is deliberate incorrect...
The Analytic Distortion Induced by False-Eye Separation in Head-Tracked Stereoscopic Displays (1999)
Wartell, Zachary Justin, Hodges, Larry F., Ribarsky, William
Stereoscopic display is a fundamental part of virtual reality systems such as the virtual workbench, the CAVE and HMD systems. A common practice in stereoscopic systems is deliberate incorrect...
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain partitioned by spheroidal height-augmented quadtrees. While previous methods support terrain...
Can Audio Enhance Visual Perception and Performance in a Virtual Environment? (1999)
Davis, Elizabeth Thorpe, Scott, Kevin, Pair, Jarrell, Hodges, Larry F., Oliverio, James
Does the addition of audio enhance visual perception and performance within a virtual environment? To address this issue we used both a questionnaire and an experimental test of the effect of audio...
Balancing Fusion, Image Depth and Distortion in Stereoscopic Head-Tracked Displays (1999)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
Stereoscopic display is a fundamental part of virtual reality HMD systems and HTD (head-tracked display) systems such as the virtual workbench and the CAVE. A common practice in stereoscopic systems...
Leibe, Bastian, Starner, Thad, Ribarsky, William, Wartell, Zachary Justin, Krum, David Michael, Singletary, Bradley Allen, ...
The Perceptive Workbench enables a spontaneous, natural, and unimpeded interface between the physical and virtual world. It is built on vision-based methods for interaction that remove the need for...
Toolsets for the Development of Highly Interactive and Information-Rich Virtual Environments (1998)
Bowman, Douglas A., Hodges, Larry F.
This paper describes a unique set of programming toolsets which are designed specifically to aid in the authoring of immersive virtual environment (VE) applications. The first toolset provides a wide...
A Methodology for the Evaluation of Travel Techniques for Immersive Virtual Environments (1998)
Bowman, Douglas A., Koller, David, Hodges, Larry F.
We present a framework for the analysis and evaluation of travel, or viewpoint motion control, techniques for use in immersive virtual environments (VEs). The basic construct of this framework is a...
The Educational Value of an Information-Rich Virtual Environment (1998)
Bowman, Douglas A., Wineman, Jean Davison, Hodges, Larry F.
"Information-rich" virtual environments consist not only of three-dimensional graphics and other spatial data, but also include information of an abstract or symbolic nature that is related to the...
Exploratory Design of Animal Habitats Within an Immersive Virtual Environment (1998)
Bowman, Douglas A., Wineman, Jean Davison, Hodges, Larry F.
One of the first useful applications of virtual environments (VEs) was the architectural walkthrough, in which users view buildings or other structures in a natural, interactive manner. The obvious...
COOL-VR: A Virtual Environments Toolkit (1998)
Kooper, Rob, Wills, Brian Wesley, Hamilton, Kevin, Hodges, Larry F.
This paper provides an overview of the Common Object Oriented Library for Virtual Reality (COOL-VR) toolkit, a multi-platform, multithreaded toolkit that allows for easy adaptation to different...
The Simple Virtual Environment Library: Verson 2.0 Users Guide (1998)
Kessler, Gregory Drew, Kooper, Rob, Hodges, Larry F.
The Simple Virtual Environments (SVE) C library provides a framework for the development of virtual environment (VE) applications. The library provides the default components of simple VE...
Interaction in Semi-Immersive Large Display Environments (1998)
Van De Pol, Rogier, Ribarsky, William, Hodges, Larry F., Post, F. H. (Frits H.)
This paper evaluates interaction methods within the general framework of navigation, selection, and manipulation. It considers large display environments and, in particular, the virtual workbench,...
Third-Person Navigation of Whole-Planet Terrain in a Head-tracked Stereoscopic Environment (1998)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
Navigation and interaction in stereoscopic virtual environments with head-tracking for very large data sets present several challenges beyond those encountered with smaller or monoscopic data sets....
Efficient Ray Intersection with Global Terrain using Spheroidal Height-Augmented Quadtrees (1998)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain which is partitioned by spheroidal height-augmented quadtrees. While previous methods support...
An Integrated Global GIS and Visual Simulation System (1998)
Peter Lindstrom David, David Koller, William Ribarsky, Larry F. Hodges, Augusto Op, Bosch Nick Faust
This paper reports on an integrated visual simulation system supporting visualization of global multiresolution terrain elevation and imagery data, static and dynamic 3D objects with multiple levels...
RAVEL, a Support System for the Development of Distributed, Multi-user VE Applications (1998)
G. Drew Kessler, Larry F. Hodges, Mustaque Ahamad
We present the Remote Attribute Virtual Environment Library (RAVEL), a support system for the development and implementation of distributed, multi-user VE applications. The system extends earlier...
An Integrated Global GIS and Visual Simulation System (1998)
Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Augusto Op, ...
This paper reports on an integrated visual simulation system supporting visualization of global multiresolution terrain elevation and imagery data, static and dynamic 3D objects with multiple levels...
A Methodology for the Evaluation of Travel Techniques for Immersive Virtual Environments (1998)
Doug A. Bowman, David Koller, Larry F. Hodges
We present a framework for the analysis and evaluation of travel, or viewpoint motion control, techniques for use in immersive virtual environments (VEs). The basic construct of this framework is a...
Toolsets for the Development of Highly Interactive and Information-Rich Virtual Environments (1998)
Bowman, Douglas A., Hodges, Larry F.
This paper describes a unique set of programming toolsets which are designed specifically to aid in the authoring of immersive virtual environment (VE) applications. The first toolset provides a wide...
A Methodology for the Evaluation of Travel Techniques for Immersive Virtual Environments (1998)
Bowman, Douglas A., Koller, David, Hodges, Larry F.
We present a framework for the analysis and evaluation of travel, or viewpoint motion control, techniques for use in immersive virtual environments (VEs). The basic construct of this framework is a...
The Educational Value of an Information-Rich Virtual Environment (1998)
Bowman, Douglas A., Wineman, Jean Davison, Hodges, Larry F.
"Information-rich" virtual environments consist not only of three-dimensional graphics and other spatial data, but also include information of an abstract or symbolic nature that is related to the...
Exploratory Design of Animal Habitats Within an Immersive Virtual Environment (1998)
Bowman, Douglas A., Wineman, Jean Davison, Hodges, Larry F.
One of the first useful applications of virtual environments (VEs) was the architectural walkthrough, in which users view buildings or other structures in a natural, interactive manner. The obvious...
COOL-VR: A Virtual Environments Toolkit (1998)
Kooper, Rob, Wills, Brian Wesley, Hamilton, Kevin, Hodges, Larry F.
This paper provides an overview of the Common Object Oriented Library for Virtual Reality (COOL-VR) toolkit, a multi-platform, multithreaded toolkit that allows for easy adaptation to different...
The Simple Virtual Environment Library: Verson 2.0 Users Guide (1998)
Kessler, Gregory Drew, Kooper, Rob, Hodges, Larry F.
The Simple Virtual Environments (SVE) C library provides a framework for the development of virtual environment (VE) applications. The library provides the default components of simple VE...
Interaction in Semi-Immersive Large Display Environments (1998)
Van De Pol, Rogier, Ribarsky, William, Hodges, Larry F., Post, F. H. (Frits H.)
This paper evaluates interaction methods within the general framework of navigation, selection, and manipulation. It considers large display environments and, in particular, the virtual workbench,...
Third-Person Navigation of Whole-Planet Terrain in a Head-tracked Stereoscopic Environment (1998)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
Navigation and interaction in stereoscopic virtual environments with head-tracking for very large data sets present several challenges beyond those encountered with smaller or monoscopic data sets....
Efficient Ray Intersection with Global Terrain using Spheroidal Height-Augmented Quadtrees (1998)
Wartell, Zachary Justin, Ribarsky, William, Hodges, Larry F.
We present an algorithm for efficiently computing ray intersections with multi-resolution global terrain which is partitioned by spheroidal height-augmented quadtrees. While previous methods support...
Collaborative research with Akira Kobayashi at Hitachi (1998)
Issued as final report
DURIP : interaction, collaboration, and application building within a (1998)
Issued as final report
User Interfaces for Cooperative Remote Design. (1997)
Hodges, Larry F., Ribarsky, William
Our objective in this research is to allow teams that are physically separated to do detailed design work on large-scale, 3D projects. The specific task is to enable multiple users to stand at each...
An Integrated Global GIS and Visual Simulation System (1997)
Lindstrom, Peter, Koller, David, Ribarsky, William, Hodges, Larry F., Op Den Bosch, Augusto, Faust, Nick L. (Nickolas Lea)
This paper reports on an integrated visual simulation system supporting visualization of global multiresolution terrain elevation and imagery data, static and dynamic 3D objects with multiple levels...
Doug A. Bowman, David Koller, Larry F. Hodges
We present a categorization of techniques for firstperson motion control, or travel, through immersive virtual environments, as well as a framework for evaluating the quality of different techniques...
Benjamin Watson, Neff Walker, Larry F. Hodges
Previous work has demonstrated the utility of reductions in the level of detail (LOD) in the periphery of head-tracked, large field of view displays. This paper provides a psychophysically based...
Evaluation of Movement Control Techniques for Immersive Virtual Environments (1997)
Doug A. Bowman, David Koller, Larry F. Hodges
We present a categorization of techniques for first-person movement or travel through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for...
Toolsets for the Development of Highly Interactive and Information-Rich Virtual Environments (1997)
Doug A. Bowman, Larry F. Hodges
This paper describes a unique set of programming toolsets which are designed specifically to aid in the authoring of immersive virtual environment (VE) applications. The first toolset provides a wide...
Doug A. Bowman, David Koller, Larry F. Hodges
We present a categorization of techniques for firstperson motion control, or travel, through immersive virtual environments, as well as a framework for evaluating the quality of different techniques...
Toolsets for the Development of Highly Interactive and Information-Rich Virtual Environments (1997)
Doug A. Bowman, Larry F. Hodges
This paper describes a unique set of programming toolsets which are designed specifically to aid in the authoring of immersive virtual environment (VE) applications. The first toolset provides a wide...
Evaluation of Movement Control Techniques for Immersive Virtual Environments (1997)
Doug Bowman David, David Koller, Larry F. Hodges
We present a categorization of techniques for first-person movement or travel through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for...
Benjamin Watson, Neff Walker, Larry F. Hodges
Previous work has demonstrated the utility of reductions in the level of detail (LOD) in the periphery of head-tracked, large field of view displays. This paper provides a psychophysically based...
Doug A. Bowman, David Koller, Larry F. Hodges
We present a categorization of techniques for firstperson motion control, or travel, through immersive virtual environments, as well as a framework for evaluating the quality of different techniques...
Don Allison, Brian Wills, Larry F. Hodges, Jean Wineman
: The Virtual Reality Gorilla Exhibit is a system for teaching users about gorilla behaviors and social interactions. The system includes an accurate model of the Zoo Atlanta gorilla habitats and...
Doug A. Bowman, Larry F. Hodges
Grabbing and manipulating virtual objects is an important user interaction for immersive virtual environments. We present implementations and discussion of six techniques which allow manipulation of...
An Integrated Global GIS and Visual Simulation System (1997)
Lindstrom, Peter, Koller, David, Ribarsky, William, Hodges, Larry F., Op Den Bosch, Augusto, Faust, Nick L. (Nickolas Lea)
This paper reports on an integrated visual simulation system supporting visualization of global multiresolution terrain elevation and imagery data, static and dynamic 3D objects with multiple levels...
Real-Time, Continuous Level of Detail Rendering of Height Fields (1996)
Lindstrom, Peter, Koller, David, Ribarsky, William, Hodges, Larry F., Faust, Nick L. (Nickolas Lea), Turner, Gregory
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
A Network Communication Protocol for Distributed Virtual Environment Systems (1996)
Kessler, Gregory Drew, Hodges, Larry F.
Virtual environment (VE) applications involve many different tasks, including interfacing with input and output devices, providing responsive user interaction, and simulating a dynamic environment....
Effectiveness of Peripheral Level of Detail Degradation When Used with Head-Mounted Displays (1996)
Watson, Benjamin A. (Benjamin Allen), Walker, Neff, Hodges, Larry F., Worden, Aileen
Two user studies were performed to evaluate the effectiveness of level of detail (LOD) degradation in the periphery of head-mounted displays. In the first study, spatial detail was degraded by...
4D Symbology for Sensing and Simulation (1996)
Turner, Gregory, Haus, Jacques, Newton, Gregory P., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Hodges, Larry F.
The Army's Common Picture of the Battlefield will produce immense amounts of data associated with tactical goals and options, dynamic operations, unit and troop movement, and general battlefield...
Organizational Hierarchies for Real-Time, 4D Visualizations (1996)
Haus, Jacques, Newton, Gregory P., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Hodges, Larry F., Newton, Gregory P.
This paper describes a 4D object hierarchy that is appropriate for the immense amount of time-dependent, 3D data associated with large scale simulations or information spaces. An organizational...
Wills, Brian Wesley, Hodges, Larry F., Wineman, Jean Davison
The Virtual Reality Gorilla Exhibit is a system for teaching users about gorilla behaviors and social interactions. The system includes an accurate model of the Zoo Atlanta gorilla habitats and...
The Virtual Venue: User-Computer Interaction in Information-Rich Virtual Environments (1996)
Bowman, Douglas A., Hodges, Larry F., Bolter, J. David
We present a virtual reality application that allows users to access embedded information within an immersive virtual environment. Due to the richness and complexity of this environment, interaction...
Evaluation of Movement Control Techniques for Immersive Virtual Environments (1996)
Bowman, Douglas A., Koller, David, Hodges, Larry F.
We present a categorization of techniques for first-person movement or travel through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for...
Effectiveness of Peripheral Level of Detail Degradation When Used with Head-Mounted Displays (1996)
Benjamin Watson, Neff Walker, Larry F. Hodges, Aileen Worden
Two user studies were performed to evaluate the effectiveness of level of detail (LOD) degradation in the periphery of head-mounted displays. In the first study, spatial detail was degraded by...
Real-time, continuous level of detail rendering of height fields (1996)
Peter Lindstrom, David Koller, William Ribarsky, Larry F. Hodges, Nick Faust, Gregory A. Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
Effectiveness of Peripheral Level of Detail Degradation When Used With Head-Mounted Displays (1996)
Benjamin Watson, Neff Walker, Larry F. Hodges, Aileen Worden
Two user studies were performed to evaluate the effectiveness of level of detail (LOD) degradation in the periphery of head-mounted displays. In the first study, spatial detail was degraded by...
Real-Time, Continuous Level of Detail Rendering of Height Fields (1996)
Peter Lindstrom, David Koller, William Ribarsky, Larry F Hodges, Nick Faust, Gregory A Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
Real-Time, Continuous Level of Detail Rendering of Height Fields (1996)
Peter Lindstrom, David Koller, William Ribarsky, Larry F Hodges, Nick Faust, Gregory Turner
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
A Network Communication Protocol for Distributed Virtual Environment Systems (1996)
G. Drew Kessler, Larry F. Hodges
Virtual environment (VE) applications involve many different tasks, including interfacing with input and output devices, providing responsive user interaction, and simulating a dynamic environment....
Real-Time, Continuous Level of Detail Rendering of Height Fields (1996)
Lindstrom, Peter, Koller, David, Ribarsky, William, Hodges, Larry F., Faust, Nick L. (Nickolas Lea), Turner, Gregory
We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and...
A Network Communication Protocol for Distributed Virtual Environment Systems (1996)
Kessler, Gregory Drew, Hodges, Larry F.
Virtual environment (VE) applications involve many different tasks, including interfacing with input and output devices, providing responsive user interaction, and simulating a dynamic environment....
Effectiveness of Peripheral Level of Detail Degradation When Used with Head-Mounted Displays (1996)
Watson, Benjamin A. (Benjamin Allen), Walker, Neff, Hodges, Larry F., Worden, Aileen
Two user studies were performed to evaluate the effectiveness of level of detail (LOD) degradation in the periphery of head-mounted displays. In the first study, spatial detail was degraded by...
4D Symbology for Sensing and Simulation (1996)
Turner, Gregory, Haus, Jacques, Newton, Gregory P., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Hodges, Larry F.
The Army's Common Picture of the Battlefield will produce immense amounts of data associated with tactical goals and options, dynamic operations, unit and troop movement, and general battlefield...
Organizational Hierarchies for Real-Time, 4D Visualizations (1996)
Haus, Jacques, Newton, Gregory P., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Hodges, Larry F., Newton, Gregory P.
This paper describes a 4D object hierarchy that is appropriate for the immense amount of time-dependent, 3D data associated with large scale simulations or information spaces. An organizational...
Wills, Brian Wesley, Hodges, Larry F., Wineman, Jean Davison
The Virtual Reality Gorilla Exhibit is a system for teaching users about gorilla behaviors and social interactions. The system includes an accurate model of the Zoo Atlanta gorilla habitats and...
The Virtual Venue: User-Computer Interaction in Information-Rich Virtual Environments (1996)
Bowman, Douglas A., Hodges, Larry F., Bolter, J. David
We present a virtual reality application that allows users to access embedded information within an immersive virtual environment. Due to the richness and complexity of this environment, interaction...
Evaluation of Movement Control Techniques for Immersive Virtual Environments (1996)
Bowman, Douglas A., Koller, David, Hodges, Larry F.
We present a categorization of techniques for first-person movement or travel through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for...
Using Texture Maps to Correct for Optical Distortion in Head-Mounted Displays (1995)
Watson, Benjamin A. (Benjamin Allen), Hodges, Larry F.
This paper describes a fast method of correcting for optical distortion in head-mounted displays (HMDs). Since the distorted display surface in an HMD is not rectilinear, the shape and location of...
Evaluation of the CyberGlove(TM) as a Whole Hand Input Device (1995)
Kessler, Gregory Drew, Walker, Neff, Hodges, Larry F.
We present a careful evaluation of the sensor characteristics of the CyberGlove(TM) model CG1801 whole hand input device. In particular, we conducted an experimental study that investigated level of...
Level-of-Detail Management for Real-Time Rendering of Phototextured Terrain (1995)
Lindstrom, Peter, Koller, David, Hodges, Larry F., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Turner, Gregory
We present four techniques for real-time level-of-detail reduction of digital terrain data without loss of visual image quality or detail. Techniques for reducing polygon count based on distance and...
Virtual GIS: A Real-Time 3D Geographic Information System (1995)
Koller, David, Lindstrom, Peter, Ribarsky, William, Hodges, Larry F., Faust, Nick L. (Nickolas Lea), Turner, Gregory
Advances in computer graphics hardware and algorithms, visualization, and interactive techniques for analysis offer the components for a highly integrated, efficient real-time 3D Geographic...
Integrating Perceptual and Symbolic Information in VR (1995)
Bolter, J. David, Hodges, Larry F., Meyer, Thomas C., Nichols, Alison
Inside or outside the lab, most current VR aims at reproducing perceptual experience. The goal is to give the user the sensation that he or she is walking along a hallway in a building, flying over a...
User Interface Constraints for Immersive Virtual Environment Applications (1995)
Bowman, Douglas A., Hodges, Larry F.
Applications of Virtual Environments (VEs) are rapidly becoming more complex and interactive. They are not restricted to tasks that are solely perceptual in nature; rather, they involve both...
A User Study Evaluating Level of Detail Degradation in the Periphery of Head-Mounted Displays (1995)
Watson, Benjamin A. (Benjamin Allen), Walker, Neff, Hodges, Larry F.
A user study was performed to evaluate the effectiveness of high detail insets used with head-mounted displays. Ten subjects were given a simple search task that required the location of...
A user study evaluating level of detail degradation in the periphery of head-mounted displays (1995)
Benjamin Watson, Neff Walker, Larry F. Hodges
Abstract. A user study was performed to evaluate the effectiveness of high detail insets used with head-mounted displays. Ten subjects were given a simple search task that required the location and...
User Interface constraints for immersive virtual environment applications (1995)
Doug A. Bowman, Larry F. Hodges
Applications of Virtual Environments (VEs) are rapidly becoming more complex and interactive. They are not restricted to tasks that are solely perceptual in nature; rather, they involve both...
A User Study Evaluating Level Of Detail Degradation In The Periphery Of Head-Mounted Displays (1995)
Benjamin A. Watson, Larry F. Hodges, Neff Walker
buttons to indicated if the object was labelled with a number or letter. Subjects performed the search task in seven different display types. Each of these display types was a combination of the two...
Using Texture Maps to Correct for Optical Distortion in Head-Mounted Displays (1995)
Benjamin A. Watson, Larry F. Hodges
Figure 1: Radial distortion expands the extent of the display as well as the image it contains. Figure 2: Severity of distortion increases with distance from the optical axis. This example shows a...
A User Study Evaluating Level of Detail Degradation in the Periphery of Head-Mounted Displays (1995)
Benjamin Watson Neff, Benjamin Watson, Neff Walker, Larry F. Hodges
. A user study was performed to evaluate the effectiveness of high detail insets used with head-mounted displays. Ten subjects were given a simple search task that required the location and...
User Interface Constraints for Immersive Virtual Environment Applications (1995)
Doug A. Bowman, Larry F. Hodges
Applications of Virtual Environments (VEs) are rapidly becoming more complex and interactive. They are not restricted to tasks that are solely perceptual in nature; rather, they involve both...
Evaluation of the CyberGlove as a Whole Hand Input Device (1995)
G. Drew Kessler, Larry F. Hodges, Neff Walker
We present a careful evaluation of the sensor characteristics of the CyberGlove^TM model CG1801 whole hand input device. In particular, we conducted an experimental study that investigated level of...
Using Texture Maps to Correct for Optical Distortion in Head-Mounted Displays (1995)
Watson, Benjamin A. (Benjamin Allen), Hodges, Larry F.
This paper describes a fast method of correcting for optical distortion in head-mounted displays (HMDs). Since the distorted display surface in an HMD is not rectilinear, the shape and location of...
Evaluation of the CyberGlove(TM) as a Whole Hand Input Device (1995)
Kessler, Gregory Drew, Walker, Neff, Hodges, Larry F.
We present a careful evaluation of the sensor characteristics of the CyberGlove(TM) model CG1801 whole hand input device. In particular, we conducted an experimental study that investigated level of...
Level-of-Detail Management for Real-Time Rendering of Phototextured Terrain (1995)
Lindstrom, Peter, Koller, David, Hodges, Larry F., Ribarsky, William, Faust, Nick L. (Nickolas Lea), Turner, Gregory
We present four techniques for real-time level-of-detail reduction of digital terrain data without loss of visual image quality or detail. Techniques for reducing polygon count based on distance and...
Virtual GIS: A Real-Time 3D Geographic Information System (1995)
Koller, David, Lindstrom, Peter, Ribarsky, William, Hodges, Larry F., Faust, Nick L. (Nickolas Lea), Turner, Gregory
Advances in computer graphics hardware and algorithms, visualization, and interactive techniques for analysis offer the components for a highly integrated, efficient real-time 3D Geographic...
Integrating Perceptual and Symbolic Information in VR (1995)
Bolter, J. David, Hodges, Larry F., Meyer, Thomas C., Nichols, Alison
Inside or outside the lab, most current VR aims at reproducing perceptual experience. The goal is to give the user the sensation that he or she is walking along a hallway in a building, flying over a...
User Interface Constraints for Immersive Virtual Environment Applications (1995)
Bowman, Douglas A., Hodges, Larry F.
Applications of Virtual Environments (VEs) are rapidly becoming more complex and interactive. They are not restricted to tasks that are solely perceptual in nature; rather, they involve both...
A User Study Evaluating Level of Detail Degradation in the Periphery of Head-Mounted Displays (1995)
Watson, Benjamin A. (Benjamin Allen), Walker, Neff, Hodges, Larry F.
A user study was performed to evaluate the effectiveness of high detail insets used with head-mounted displays. Ten subjects were given a simple search task that required the location of...
Presence as the Defining Factor in a VR Application (1994)
Hodges, Larry F., Kooper, Rob, Meyer, Thomas C., De Graaff, Johannes J. (Hans), Rothbaum, Barbara O., Opdyke, Dan, ...
The sense of presence that a user experiences in a virtual environment is perhaps the best known attribute of virtual reality. It is an appeal to this sense of presence that is used to distinguish...
WiMP (Widgets, Menus, and Pointing) Design Tools for Virtual Environments (1994)
Bowman, Douglas A., Hodges, Larry F.
Many early virtual environment (VE) applications were simple walkthroughs. The effect was intended to be visual, with little or no direct manipulation of the space by the user. A logical next step is...
Larry F. Hodges, Barbara O. Rothbaum, Rob Kooper, Dan Opdyke, Thomas Meyer, ...
The sense of presence that a user experiences in a virtual environment is perhaps the bestknown attribute of virtual reality. It is an appeal to this sense of presence that is used to distinguish...
Presence as the Defining Factor in a VR Application (1994)
Hodges, Larry F., Kooper, Rob, Meyer, Thomas C., De Graaff, Johannes J. (Hans), Rothbaum, Barbara O., Opdyke, Dan, ...
The sense of presence that a user experiences in a virtual environment is perhaps the best known attribute of virtual reality. It is an appeal to this sense of presence that is used to distinguish...
WiMP (Widgets, Menus, and Pointing) Design Tools for Virtual Environments (1994)
Bowman, Douglas A., Hodges, Larry F.
Many early virtual environment (VE) applications were simple walkthroughs. The effect was intended to be visual, with little or no direct manipulation of the space by the user. A logical next step is...
Exploiting Spatio-Temporal Coherence in Ray-Traced Animation Frames (1993)
Adelson, Stephen Joel, Hodges, Larry F.
The majority of computer graphics images are generated as part of a sequence of animation frames. The usual approach for producing these images, however, is to render each frame in an animation as if...
Geometric Considerations for Stereoscopic Virtual Environments (1993)
Hodges, Larry F., Davis, Elizabeth Thorpe
We examine the relationship between the different geometries implicit in a stereoscopic virtual environment. In particular, we examine in detail the relationship of retinal disparity, fixation point,...
Run-Based Multi-Point Line Drawing (1993)
Lee, Eun Jae, Hodges, Larry F.
This paper describes a hybrid method which uses structural properties of raster lines, such as runs, to improve the efficiency of multi-point line generation. A quadruple-step algorithm is developed...
The Simple Virtual Environment Library (1993)
Verlinden, Jouke C., Kessler, Gregory Drew, Hodges, Larry F.
The Simple Virtual Environments C library (SVE) provides basic functions to create virtual reality applications on Silicon Graphics workstations, including load/save/render routines of (hierarchical...
Exact Ray-Traced Animation Frames Generated by Reprojection (1993)
Adelson, Stephen Joel, Hodges, Larry F.
The majority of computer graphics images are generated as part of a sequence of animation frames. The usual approach for producing these images is to render each frame as if it were a single,...
Virtual Environments Research at the Georgia Tech GVU Center (1993)
Hodges, Larry F., Bolter, J. David, Mynatt, Elizabeth D., Ribarsky, William, Van Teylingen, Ron
The Grapics, Visualization, and Usability (GVU) Center was established at Georgia Tech in 1991 in recognition of the central importance of these three disciplines to the future growth of computing....
Run-Based Multi-Point Line Drawing (1993)
Line drawing on discrete graphics devices such as raster video displays, plotters, and image printers is one of the fundamental operations in computer graphics. Real-time interactive applications or...
Stereoscopic Ray-Tracing (1993)
Larry F. Hodges, Contact Stephen, Stephen Adelson, Stephen J. Adelson, Stephen J. Adelson, Larry F
In this paper, we describe a method to create an approximate ray-traced stereoscopic pair by transforming a fully ray-traced left-eye view into an inferred right-eye view. Performance results from...
Exploiting Spatio-Temporal Coherence in Ray-Traced Animation Frames (1993)
Adelson, Stephen Joel, Hodges, Larry F.
The majority of computer graphics images are generated as part of a sequence of animation frames. The usual approach for producing these images, however, is to render each frame in an animation as if...
Geometric Considerations for Stereoscopic Virtual Environments (1993)
Hodges, Larry F., Davis, Elizabeth Thorpe
We examine the relationship between the different geometries implicit in a stereoscopic virtual environment. In particular, we examine in detail the relationship of retinal disparity, fixation point,...
Run-Based Multi-Point Line Drawing (1993)
Lee, Eun Jae, Hodges, Larry F.
This paper describes a hybrid method which uses structural properties of raster lines, such as runs, to improve the efficiency of multi-point line generation. A quadruple-step algorithm is developed...
The Simple Virtual Environment Library (1993)
Verlinden, Jouke C., Kessler, Gregory Drew, Hodges, Larry F.
The Simple Virtual Environments C library (SVE) provides basic functions to create virtual reality applications on Silicon Graphics workstations, including load/save/render routines of (hierarchical...
Exact Ray-Traced Animation Frames Generated by Reprojection (1993)
Adelson, Stephen Joel, Hodges, Larry F.
The majority of computer graphics images are generated as part of a sequence of animation frames. The usual approach for producing these images is to render each frame as if it were a single,...
Virtual Environments Research at the Georgia Tech GVU Center (1993)
Hodges, Larry F., Bolter, J. David, Mynatt, Elizabeth D., Ribarsky, William, Van Teylingen, Ron
The Grapics, Visualization, and Usability (GVU) Center was established at Georgia Tech in 1991 in recognition of the central importance of these three disciplines to the future growth of computing....
Visual Representations of Discrete Multivariate Data (1992)
Ribarsky, William, Hodges, Larry F., Minsk, Robert, Bruchez, Marcel
Some methods are presented, involving shape and color distortions of 3-D objects, that are well suited for the correlated interpretation of complex, discrete data. Examples are given for data taken...
Algorithms for Rendering Cubic Curves (1992)
Watson, Benjamin A. (Benjamin Allen), Hodges, Larry F.
We present two integer-only algorithms to be used in tandem for rendering cubic functions and parametric cubic curves with ratyional coefficients. We then show how to take advantage of curve shape to...
Stereoscopic Ray-Tracing (1992)
Adelson, Stephen Joel, Hodges, Larry F.
In this paper, we describe a method to create an approximate ray-traced stereoscopic pair by transforming a fully ray-traced left-eye view into an inferred right-eye view. Performance results from...
Ray-Affine Functions: A General Dual Form to Describe Curves, Surfaces, and Volumes (1992)
Akleman, Ergun, Hodges, Larry F., Mersereau, Russell M.
In computer graphics modeling, two different forms are used to represent curves and surfaces: implicit and parametric. Functions that can be expressed both in implicit and parametric forms are called...
Algorithms For Rendering Cubic Curves (1992)
Benjamin Watson, Larry F. Hodges
We present two integer-only algorithms to be used in tandem for rendering cubic functions and parametric cubic curves with rational coefficients. We then show how to take advantage of curve shape to...
Visual Representations of Discrete Multivariate Data (1992)
Ribarsky, William, Hodges, Larry F., Minsk, Robert, Bruchez, Marcel
Some methods are presented, involving shape and color distortions of 3-D objects, that are well suited for the correlated interpretation of complex, discrete data. Examples are given for data taken...
Algorithms for Rendering Cubic Curves (1992)
Watson, Benjamin A. (Benjamin Allen), Hodges, Larry F.
We present two integer-only algorithms to be used in tandem for rendering cubic functions and parametric cubic curves with ratyional coefficients. We then show how to take advantage of curve shape to...
Stereoscopic Ray-Tracing (1992)
Adelson, Stephen Joel, Hodges, Larry F.
In this paper, we describe a method to create an approximate ray-traced stereoscopic pair by transforming a fully ray-traced left-eye view into an inferred right-eye view. Performance results from...
Ray-Affine Functions: A General Dual Form to Describe Curves, Surfaces, and Volumes (1992)
Akleman, Ergun, Hodges, Larry F., Mersereau, Russell M.
In computer graphics modeling, two different forms are used to represent curves and surfaces: implicit and parametric. Functions that can be expressed both in implicit and parametric forms are called...
Basic principles of stereographic software development (1991)
Generation of images for a time-multiplexed stereoscopic display environment is not a straightforward extension of image generation in a perspective graphics environment. There are several factors...
Rotation algorithm artifacts in stereoscopic images (1991)
Hodges, Larry F., McAllister, David F.
We examine the effect of using rotations for generation of the left- and right-eye perspective views of a stereoscopic image. We show that this approach to stereoscopic display of perspective views...
Comparison of 3-D display formats for CAD applications (1991)
McWhorter, Shane William, Hodges, Larry F., Rodriguez, Walter E.
Two experiments were performed to rank different types of display formats common to CAD applications in terms of geometric information conveyed and perceived realism of objects. Display types tested...
Visible Surface Ray-Tracing of Stereoscopic Images (1991)
Adelson, Stephen Joel, Hodges, Larry F.
Formerly: Ray-Tracing Stereoscopic Images.
Simultaneous Generation of Stereoscopic Views (1991)
Adelson, Stephen Joel, Bentley, Jeffrey B., Chong, In Seok, Hodges, Larry F., Winograd, Joseph
Currently almost all computer graphic stereoscopic images are generated by doubling the work required to create a single image. In this paper we derive and analyze algorithms for simultaneous...
The Graphics, Visualization, and Usability Center Brochure (1991)
Badre, Albert, Berger, Marc, Corso, Gregory M., Davis, Elizabeth Thorpe, Ezquerra, Norberto F., Foley, James D., ...
Graphics, Visualization, and Usability (GVU) is an interdisciplinary area which draws its intellectual foundations from Computer Science, Psychology, Industrial and Systems Engineering, and Computer...
McWhorter, Shane William, Hodges, Larry F., Rodriguez, Walter E.
Although the popularity of virtual environments is widely known, little is known about the usability of virtual environment displays. This paper presents experimental data on the effect of virtual...
A method for interactive manipulation and animation of volumetric data (1991)
Jean, Yves, Hodges, Larry F., Pettigrew, Roderic
We outline an efficient method for visualizing and manipulating volumetric data, in particular, cardiac MRIdata sets. The approach is designed to allow interactive manipulation and real-time...
Simultaneous Generation of Stereoscopic Views (1991)
Stephen J. Adelson, Stephen J. Adelson, In Seok Chong, Jeffrey B. Bentley, Jeffrey B. Bentley, Larry F. Hodges, ...
Currently almost all computer graphic stereoscopic images are generated by doubling the work required to create a single image. In this paper we derive and analyze algorithms for simultaneous...
Basic principles of stereographic software development (1991)
Generation of images for a time-multiplexed stereoscopic display environment is not a straightforward extension of image generation in a perspective graphics environment. There are several factors...
Rotation algorithm artifacts in stereoscopic images (1991)
Hodges, Larry F., McAllister, David F.
We examine the effect of using rotations for generation of the left- and right-eye perspective views of a stereoscopic image. We show that this approach to stereoscopic display of perspective views...
Comparison of 3-D display formats for CAD applications (1991)
McWhorter, Shane William, Hodges, Larry F., Rodriguez, Walter E.
Two experiments were performed to rank different types of display formats common to CAD applications in terms of geometric information conveyed and perceived realism of objects. Display types tested...
Visible Surface Ray-Tracing of Stereoscopic Images (1991)
Adelson, Stephen Joel, Hodges, Larry F.
Formerly: Ray-Tracing Stereoscopic Images.
Simultaneous Generation of Stereoscopic Views (1991)
Adelson, Stephen Joel, Bentley, Jeffrey B., Chong, In Seok, Hodges, Larry F., Winograd, Joseph
Currently almost all computer graphic stereoscopic images are generated by doubling the work required to create a single image. In this paper we derive and analyze algorithms for simultaneous...
The Graphics, Visualization, and Usability Center Brochure (1991)
Badre, Albert, Berger, Marc, Corso, Gregory M., Davis, Elizabeth Thorpe, Ezquerra, Norberto F., Foley, James D., ...
Graphics, Visualization, and Usability (GVU) is an interdisciplinary area which draws its intellectual foundations from Computer Science, Psychology, Industrial and Systems Engineering, and Computer...
McWhorter, Shane William, Hodges, Larry F., Rodriguez, Walter E.
Although the popularity of virtual environments is widely known, little is known about the usability of virtual environment displays. This paper presents experimental data on the effect of virtual...
A method for interactive manipulation and animation of volumetric data (1991)
Jean, Yves Darly, Hodges, Larry F., Pettigrew, Roderic
We outline an efficient method for visualizing and manipulating volumetric data, in particular, cardiac MRIdata sets. The approach is designed to allow interactive manipulation and real-time...
The Virtual Venue: User-Computer Interaction in Information-Rich Virtual Environments
Doug Bowman, Larry F. Hodges, Jay Bolter, Graphics Visualization
We present a virtual reality application that allows users to access embedded information within an immersive virtual environment. Due to the richness and complexity of this environment, interaction...
The Virtual Venue: User-Computer Interaction in Information-Rich Virtual Environments
Doug Bowman, Larry F. Hodges, Jay Bolter
We present a virtual environment application that allows users to access embedded information within an immersive virtual space. Due to the richness and complexity of this environment, efficient and...
A Methodology for the Evaluation of Travel Techniques for Immersive Virtual Environments
Doug A. Bowman, David Koller, Larry F. Hodges
We present a framework for the analysis and evaluation of travel, or viewpoint motion control, techniques for use in immersive virtual environments (VEs). The basic construct of this framework is a...