Sketching Free-form Surfaces Using Network of Curves (2009)
Takeo Igarashi, Koel Das, Pablo Diaz-gutierrez, M. Gopi
This work addresses the issue of generating free-form surfaces using a 2D sketch interface. As the first step in this process, we develop a methodology to sketch 3D space curves from 2D sketches....
Takeo Igarashi, Satoshi Matsuoka, Hidehiko Tanaka, Michael Imbrogno
� � Provide a sketch-based sketch based interface for the rapid prototyping of 3D freeform objects � � Simple/intuitive for casual users
3D6B Editor: Projective 3D Sketching with Line-Based Rendering (2009)
In this work, a system for 3D sketching is presented. Instead of trying to process 3D data as geometric models constructed of surfaces or solids, the data is stored as 3D lines, preserving their form...
Bubble Clusters: An Interface for Manipulating Spatial Aggregation of Graphical Objects (2009)
Nayuko Watanabe, Motoi Washida, Takeo Igarashi
Spatial layout is frequently used for managing loosely organized information, such as desktop icons and digital ink. To help users organize this type of information efficiently, we propose an...
SNARF Taxonomies for Sketching Novel and Realistic Functionality Abstract (2009)
Takeo Igarashi, Christopher Drexelius, Rohit Uday Talwalkar, Brian Cho, Brian P. Bailey
Paper prototyping is often used during the critical stage of early design. While paper prototyping requires a small time investment, it can fail to accurately convey the application’s behavior....
Abstract Sketch-based Segmentation of Scanned Outdoor Environment Models (2009)
Takeo Igarashi, Xiaoru Yuan, Hui Xu, Minh X. Nguyen, Amit Shesh, ...
When modeling with scanned outdoor models, being able to select a subset of the points efficiently that collectively represent an object is an important and fundamental operation. Such segmentation...
Magic Canvas: Interactive Design of a 3-D Scene Prototype from Freehand Sketches (2009)
Figure 1. An example of 3-D scene construction from a sketch in our system. The system transforms the initial 2-D sketch (left) to a 3-D scene (right) by retrieving and placing corresponding models...
Abstract Sketch-based Segmentation of Scanned Outdoor Environment Models (2008)
Takeo Igarashi, Xiaoru Yuan, Hui Xu, Minh X. Nguyen, Amit Shesh, ...
When modeling with scanned outdoor models, being able to select a subset of the points efficiently that collectively represent an object is an important and fundamental operation. Such segmentation...
Takashi Ijiri, Shigeru Owada, Makoto Okabe, Takeo Igarashi
We present a system for modeling flowers in three dimensions quickly and easily while preserving correct botanical structures. We use floral diagrams and inflorescences, which were developed by...
Bubble Clusters: An Interface for Manipulating Spatial Aggregation of Graphical Objects (2008)
Nayuko Watanabe, Motoi Washida, Takeo Igarashi
Spatial layout is frequently used for managing loosely organized information, such as desktop icons and digital ink. To help users organize this type of information efficiently, we propose an...
3D6B Editor: Projective 3D Sketching with Line-Based Rendering (2008)
In this work, a system for 3D sketching is presented. Instead of trying to process 3D data as geometric models constructed of surfaces or solids, the data is stored as 3D lines, preserving their form...
$5.00 Laplacian Mesh Optimization (2008)
Andrew Nealen, Tu Berlin, Takeo Igarashi, Olga Sorkine, Tu Berlin, Marc Alexa, ...
Copyright © 2006 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided...
Shigeru Owada, Frank Nielsen, Takeo Igarashi
We propose a new distorted texture synthesis algorithm that produces high quality result. The main cause of degraded output is fixed pixel layout of the intermediate and final images because those...
Toward Acceptable Domestic Robots: Lessons Learned from Social Psychology (2008)
Sharlin, Ehud, Young, James, Hawkins, Richard, Igarashi, Takeo
Social psychology offers a perspective on the acceptance and adoption of technology that is not often considered in technical circles. In this paper, we discuss several adoption-of-technology models...
Toward Acceptable Domestic Robots: Lessons Learned from Social Psychology (2008)
Sharlin, Ehud, Young, James, Hawkins, Richard, Igarashi, Takeo
Social psychology offers a perspective on the acceptance and adoption of technology that is not often considered in technical circles. In this paper, we discuss several adoption-of-technology models...
Puppet Master: Designing Reactive Character Behavior by Demonstration (2008)
Sharlin, Ehud, Young, James, Igarashi, Takeo
We present Puppet Master, a system that enables designers to rapidly create interactive and autonomous character behaviors (e.g., of a virtual character or a robot) that react to a main character...
Puppet Master: Designing Reactive Character Behavior by Demonstration (2008)
Sharlin, Ehud, Young, James, Igarashi, Takeo
We present Puppet Master, a system that enables designers to rapidly create interactive and autonomous character behaviors (e.g., of a virtual character or a robot) that react to a main character...
Locally Controllable Stylized Shading Ken-ichi Anjyo † OLM Digital, Inc. (2008)
Hideki Todo, William Baxter, Takeo Igarashi
Figure 1: Comparison of conventional toon shading (leftmost image) with our result (remaining images). Edits were made at the three key frames indicated: (left) added shaded area below left eye for...
A Flexible Presentation Tool for Diverse Multi-display Environments (2008)
Kazutaka Kurihara, Takeo Igarashi
Abstract. Display environments for presentations are becoming diverse, and it is common to have multiple displays in the same room. We present a system to edit and give presentations using multiple...
Shigeru Owada, Frank Nielsen, Makoto Okabe, Takeo Igarashi
Cutting the model Control map Reference images
Vision-based Gestural Interaction Using Plush Toys (2008)
Yoshinori Kawasaki, Takeo Igarashi, Takashi Ajioka, Ikuji Honda
As more and more computers are embedded in our living spaces, appropriate techniques for interacting with these devices become increasingly important. We currently lack design principles to make such...
Andrew Nealen, Tu Berlin, Takeo Igarashi, Olga Sorkine, Tu Berlin, Marc Alexa, ...
Figure 1: Modeling results using FIBERMESH. The user interactively defines the control curves, combining sketching and direct manipulation, and the system continuously presents fair interpolative...
Copy-paste Synthesis of 3D Geometry with Repetitive Patterns (2008)
Shigeru Owada, Frank Nielsen, Takeo Igarashi
Abstract. We propose a new copy-paste user interface for 3D geometry based on repetitive patterns. The system, guided by the user, analyzes patterns of repetition in the source geometry and then...
Locally Controllable Stylized Shading (2008)
Hideki Todo, Ken-ichi Anjyo, William Baxter, Takeo Igarashi
Copyright Notice
Takeo Igarashi, A. Hsia, A. Samoylov, A. Mcgovern, B. Bailey
Digital design tools provide several advantages over pen and paper, including a virtually unlimited workspace and easy design storage, transportation, duplication and access. However, the benefits of...
IGARASHI T.: Illumination brush: Interactive design of all-frequency lighting (2008)
Makoto Okabe, Yasuyuki Matsushita, Li Shen, Takeo Igarashi
We present an appearance-based user interface for artists to efficiently design customized image-based lighting environments. 1 Our approach avoids typical iterations of parameter editing, rendering,...
Takeo Igarashi, Yasunari Hashimoto, Takeo Igarashi
It is very difficult for inexperienced users to design good-looking web page layouts. Even with WYSIWYG editors, it is still difficult to obtain desired results because one must combine complicated...
Pillow: Interactive Pattern Design for Stuffed Animals (2008)
This sketch describes an interactive pattern design system for creating stuffed animals. The user imports a 3D model into the system and specifies the segmentation boundaries interactively by drawing...
Automatic Cross-Sectioning Using 3D Field Topology Analysis (2008)
Yuki Mori, Shigeo Takahashi, Takeo Igarashi, Yuriko Takeshima, Issei Fujishiro
Abstract: Cross-sectioning is a popular method for visualizing the complicated inner structures of three-dimensional volume datasets. However, the process is usually manual, meaning that a user must...
3D Graphics for Everyday Communication (2008)
Abstract: It is still difficult for casual users to author 3D models from scratch. Our goal is to design easy-to-use 3D graphics authoring tools so that people can use 3D graphics as an everyday...
Takashi Ijiri, Shigeru Owada, Makoto Okabe, Takeo Igarashi
We present a system for modeling flowers in three dimensions quickly and easily while preserving correct botanical structures. We use floral diagrams and inflorescences, which were developed by...
Large Displays Designing an Augmented (2008)
Writing Surface, Elizabeth D. Mynatt, Takeo Igarashi, W. Keith Edwards, Anthony Lamarca
(PARC), we’re investigating strategies for augmenting the individual office environment. In making this distinction, we envision the principally private space of an individual employee. Despite...
Automatic Cross-Sectioning based on Topological Volume Skeletonization (2008)
Yuki Mori, Shigeo Takahashi, Takeo Igarashi, Yuriko Takeshima, Issei Fujishiro
Abstract: Cross-sectioning is a popular method for visualizing the complicated inner structures of three-dimensional volume datasets. However, the process is usually manual, meaning that a user must...
Comparing SESAME and Sketching on Paper for Conceptual 3D Design (2008)
Takeo Igarashi, Ji-young Oh, Wolfgang Stuerzlinger, John Danahy
In the early stages of design, several concepts are usually generated to explore the possibilities. This paper investigates how well a computer-based system can support design thinking. SESAME is a...
Abstract Sketch-Based Mesh Augmentation (2008)
Takeo Igarashi, L. Olsen, F. F. Samavati, M. C. Sousa, J. A. Jorge
This paper describes a sketch-based method for augmenting geometric meshes with variable-scale sharp features. Such mesh editing operations provide a powerful way to exploit an artist’s natural...
Supportive Interfaces for Creative Visual Thinking (2007)
Current graphical user interfaces (GUI) are too cumbersome to use in the early stage of creative activities. Nested menus, arrays of buttons, and dialog boxes interfere with the flexible exploration....
A Pen-Based Constraint Drawing System Combining Dexterity and Precision (2007)
Takeo Igarashi, Sachiko Kawachiya
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Snapshots and Bookmarks as a Graphical Design History (2007)
Jouke C. Verlinden, Takeo Igarashi
With the advent of innovative modelling techniques, the need for reflection and comparison is increasing. For example, sketch-based 3D modelling described in [Igarashi et al. 1999],[Qin et al. 2000]...
Single-view relighting with normal map painting (2006)
Makoto Okabe, Gang Zeng, Yasuyuki Matsushita, Takeo Igarashi, Long Quan, Heung-yeung Shum
This paper presents an interactive technique for changing the illumination of objects in a real photograph. 1 Because lighting effects are very sensitive to surface normal perturbations but hard to...
The sketch lsystem: Global control of tree modeling using free-form strokes (2006)
Takashi Ijiri, Shigeru Owada, Takeo Igarashi
Abstract. L-system is a tool commonly used for modeling and simulating the growth of plants. In this paper, we propose a new tree modeling system based on L-system that allows the user to control the...
Illumination Brush: Interactive Design of Image-based Lighting (2006)
Makoto Okabe, Yasuyuki Matsushita, Takeo Igarashi, Heung-yeung Shum
To help artists design customized lighting environments, we present a simple user interface for designing image-based lighting. Our system allows the artist to directly specify the appearance of the...
As-rigid-as-possible shape manipulation (2005)
We present an interactive system that lets a user move and deform a two-dimensional shape without manually establishing a skeleton or freeform deformation (FFD) domain beforehand. The shape is...
automatically computes the depth of the stroke and applies constrained segmentation. It is difficult to obtain a specific region within unsegmented volume data (region of interest, ROI). The user...
Speech Pen: Predictive handwriting based on ambient multimodal recognition (2005)
Kazutaka Kurihara, Masataka Goto, Takeo Igarashi
It is tedious to handwrite long passages of text by hand. To make this process more efficient, we propose predictive handwriting that provides input predictions when the user writes by hand. A...
As-rigid-as-possible shape manipulation (2005)
Copyright © 2005 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided...
Volumetric illustration: Designing 3D models with internal textures (2004)
Shigeru Owada, Frank Nielsen, Makoto Okabe, Takeo Igarashi
This paper presents an interactive system for designing and browsing volumetric illustrations. Volumetric illustrations are 3D models with internal textures that the user can browse by cutting the...
A sketching interface for modeling the internal structures of 3D shapes (2003)
Shigeru Owada, Frank Nielsen, Kazuo Nakazawa, Takeo Igarashi
Abstract. This paper presents a sketch-based modeling system for creating objects that have internal structures. The user input consists of hand-drawn sketches and the system automatically generates...
A sketching interface for modeling the internal structures of 3D shapes (2003)
Shigeru Owada, Frank Nielsen, Kazuo Nakazawa, Takeo Igarashi
Abstract. This paper presents a sketch-based modeling system for creating objects that have internal structures. The user input consists of hand-drawn sketches and the system automatically generates...
A sketching interface for modeling the internal structures of 3D shapes (2003)
Shigeru Owada, Frank Nielsen, Kazuo Nakazawa, Takeo Igarashi
Abstract. This paper presents a sketch-based modeling system for creating objects that have internal structures. The user input consists of hand-drawn sketches and the system automatically generates...
Takeo Igarashi The, Takeo Igarashi
Introduction Putting clothes on a 3D character is often a tedious, timeconsuming task. A typical approach is to place parts of the clothes around the target body as rigid thin plates and use a...
Smooth meshes for sketch-based freeform modeling (2003)
This paper describes a framework for introducing visually smooth surfaces into sketch-based freeform modeling systems. An existing sketch-based freeform modeling system generates rough polygonal...
Considering the direction of cursor movement for efficient traversal of cascading menus (2003)
Cascading menus are commonly seen in most GUI systems. However, people sometimes choose the wrong items by mistake, or become frustrated when submenus pop up unnecessarily. This paper proposes two...
Snapshots And Bookmarks As A Graphical Design History (2002)
Jouke C. Verlinden, Takeo Igarashi
This paper presents a simple technique to support this concept, allowing a graphical display of the model states and the opportunity to bookmark and annotate various stages of the design
Adaptive unwrapping for interactive texture painting (2001)
We present a method for dynamically generating an efficient texture bitmap and its associated UV-mapping in an interactive texture painting system for 3D models. Typical 3D texture painting programs...
A temporal model for multi-level undo and redo (2000)
W. Keith Edwards, Takeo Igarashi
A number of recent systems have provided rich facilities for manipulating the timelines of applications. Such timelines represent the history of an application’s use in some session, and captures...
An Architecture for Pen-based Interaction on Electronic Whiteboards (2000)
This paper describes the software architecture for our pen-based electronic whiteboard system, called Flatland. The design goal of Flatland is to support various activities on personal office...
An Architecture for Pen-based Interaction on Electronic Whiteboards (2000)
This paper describes the software architecture for our pen-based electronic whiteboard system, called Flatland. The design goal of Flatland is to support various activities on personal office...
Speed-dependent Automatic Zooming for Browsing Large Documents (2000)
We propose a navigation technique for browsing large documents that integrates rate-based scrolling with automatic zooming. The view automatically zooms out when the user scrolls rapidly so that the...
A Temporal Model for Multi-Level Undo and Redo (2000)
W. Keith Edwards, Takeo Igarashi
A number of recent systems have provided rich facilities for manipulating the timelines of applications. Such timelines represent the history of an application's use in some session, and...
An Architecture for Pen-based Interaction on Electronic Whiteboards (2000)
This paper describes the software architecture for our pen-based electronic whiteboard system, called Flatland. The design goal of Flatland is to support various activities on personal office...
Freeform User Interfaces for Graphical Computing (1999)
Abstract. It is difficult to communicate graphical ideas or images to computers using current WIMP-style GUI. Freeform User Interfaces is an interface design framework that leverages the power of...
Teddy: A sketching interface for 3d freeform design (1999)
Takeo Igarashi, Satoshi Matsuoka, Hidehiko Tanaka
We present a sketching interface for quickly and easily designing freeform models such as stuffed animals and other rotund objects. The user draws several 2D freeform strokes interactively on the...
Integrated Manipulation: Context-aware Manipulation of 2D Diagrams (1999)
Masaaki Honda Takeo, Takeo Igarashi, Hidehiko Tanaka, Shuichi Sakai
Diagram manipulation in conventional CAD systems requires frequent mode switching and explicit placement of the pivot for rotation and scaling. In order to simplify this process, we propose an...
Demonstrating Flatland User Interfaces (1999)
Takeo Igarashi Dept, Takeo Igarashi
Flatland is an augmented whiteboard designed to assist informal activities in one's office environment. Current research focus is on the software architecture to support stroke-based...
Freeform User Interfaces for Graphical Computing (1999)
Takeo Igarashi, Takeo Igarashi
ii It is difficult to communicate graphical ideas or images to computers using current WIMP-style GUI. Users have to decompose the graphics desired in their minds into simple elements such as points,...
Teddy: A sketching interface for 3d freeform design (1999)
Takeo Igarashi, Satoshi Matsuoka, Hidehiko Tanaka
We present a sketching interface for quickly and easily designing freeform models such as stuffed animals and other rotund objects. The user draws several 2D freeform strokes interactively on the...
A Negotiation Architecture for Fluid Documents (1998)
Bay-wei Chang, Jock D. Mackinlay, Polle T. Zellweger, Takeo Igarashi
The information presented in a document often consists of primary content as well as supporting material such as explanatory notes, detailed derivations, illustrations, and the like. We introduce a...
Fluid Visualization of Spreadsheet Structures (1998)
Takeo Igarashi, Jock D. Mackinlay, Bay-wei Chang, Polle T. Zellweger
Spreadsheets augment a visible tabular layout with invisible formulas. Direct manipulations of the tabular layout may or may not result in the desired changes to the formulas. The user is forced to...
A Negotiation Architecture for Fluid Documents (1998)
Bay-wei Chang, Jock D. Mackinlay, Polle T. Zellweger, Takeo Igarashi
The information presented in a document often consists of primary content as well as supporting material such as explanatory notes, detailed derivations, illustrations, and the like. We introduce a...
In Search for an Ideal Computer-Assisted Drawing System (1997)
Takeo Igarashi, Sachiko Kawachiya, Satoshi Matsuoka, Hidehiko Tanaka
Diagram drawing with conventional computer-assisted drawing(CAD) editors often tend to take considerable amount of time despite their seeming ease of use. We analyzed the problems of such systems...
Interactive Beautification: A Technique for Rapid Geometric Design (1997)
Takeo Igarashi, Satoshi Matsuoka, Sachiko Kawachiya, Hidehiko Tanaka
We propose interactive beautification, a technique for rapid geometric design, and introduce the technique and its algorithm with a prototype system Pegasus. The motivation is to solve a problem with...
Adaptive Recognition of Implicit Structures in Human-Organized Layouts (1995)
Takeo Igarashi, Satoshi Matsuoka, Toshiyuki Masui
Card-handling using hypertext editor can be a powerful methodology for generation of ideas or understanding of complex problems. To support such activity, recognizing implicit structure in the...
Fluid Visualization of Spreadsheet Structures
Takeo Igarashi Dept, Takeo Igarashi
Spreadsheets augment a visible tabular layout with invisible formulas. Direct manipulations of the tabular layout may or may not result in the desired changes to the formulas. The user is forced to...
Path Drawing for 3D Walkthrough
Takeo Igarashi Rieko, Takeo Igarashi, Rieko Kadobayashi, Kenji Mase, Hidehiko Tanaka
This paper presents an interaction technique for walkthrough in virtual 3D spaces, where the user draws the intended path directly on the scene, and the avatar automatically moves along the path. The...
Flatland: New Dimensions in Office Whiteboards
Elizabeth Mynatt Takeo, Takeo Igarashi, W. Keith Edwards, Anthony Lamarca
Flatland is an augmented whiteboard interface designed for informal office work. Our research has investigated approaches to building an augmented whiteboard in the context of continuous, long term...
Interactive Beautification: A Technique for Rapid Geometric Design
Takeo Igarashi, Satoshi Matsuoka, Sachiko Kawachiya, Hidehiko Tanaka
We propose interactive beautification, a technique for rapid geometric design, and introduce the technique and its algorithm with a prototype system Pegasus. The motivation is to solve the problems...
Flatland: New Dimensions in Office Whiteboards
Elizabeth D. Mynatt, Takeo Igarashi, W. Keith Edwards, Anthony Lamarca
Flatland is an augmented whiteboard interface designed for informal office work. Our research has investigated approaches to building an augmented whiteboard in the context of continuous, long term...