3D Medical Collaboration Technology to Enhance Emergency Healthcare (2009)
Gregory F. Welch; The University Of North Carolina At Chapel Hill, Diane H. Sonnenwald; University Of Gothenburg And The University Of Borås, Henry Fuchs; The University Of North Carolina At Chapel Hill, Bruce Cairns; The University Of North Carolina At Chapel Hill, Ketan Mayer-Patel; The University Of North Carolina At Chapel Hill, Hanna M. Söderholm; University Of Gothenburg And The University Of Borås, ...
Two-dimensional (2D) videoconferencing has been explored widely in the past 15–20 years to support collaboration in healthcare. Two issues that arise in most evaluations of 2D videoconferencing in...
ILIE A.: Computing a view frustum to maximize an object’s image area (2008)
This paper presents a method to compute a view frustum for a 3D object viewed from a given viewpoint, such that the object is completely enclosed in the frustum and the object’s image area is also...
Differential Camera Tracking through Linearizing the Local Appearance Manifold (2008)
Hua Yang, Marc Pollefeys, Greg Welch, Jan-michael Frahm, Adrian Ilie
The appearance of a scene is a function of the scene contents, the lighting, and the camera pose. A set of n-pixel images of a non-degenerate scene captured from different perspectives lie on a 6D...
Differential Camera Tracking through Linearizing the Local Appearance Manifold (2008)
Hua Yang, Marc Pollefeys, Greg Welch, Jan-michael Frahm, Adrian Ilie
The appearance of a scene is a function of the scene contents, the lighting, and the camera pose. A set of n-pixel images of a non-degenerate scene captured from different perspectives lie on a 6D...
Improving, Expanding and Extending 3D Telepresence Abstract (2008)
Greg Welch, Henry Fuchs, Bruce Cairns, Ketan Mayer-patel, Diane H. Sonnenwald, Ruigang Yang, ...
For over a decade we have been pursuing a vision of threedimensional (3D) telepresence. Our primary driving problem is 3D medical consultation. Our basic goal is to enhance and expand medical...
Differential Camera Tracking through Linearizing the Local Appearance Manifold (2008)
Hua Yang, Marc Pollefeys, Greg Welch, Jan-michael Frahm, Adrian Ilie
The appearance of a scene is a function of the scene contents, the lighting, and the camera pose. A set of n-pixel images of a non-degenerate scene captured from different perspectives lie on a 6D...
ABSTRACT Measurement Sample Time Optimization for Human Motion Tracking/Capture Systems (2008)
Many human motion tracking systems average, integrate, or correlate device samples over some non-zero period of time in order to produce a single system-level measurement. This is done to reduce the...
Ilie, Adrian, Welch, Greg, Macenko, Marc
We present a stochastic state-space quality metric for use in controlling active camera networks aimed at 3D vision tasks such as surveillance, motion tracking, and 3D shape/appearance...
Ilie, Adrian, Welch, Greg, Macenko, Marc
We present a stochastic state-space quality metric for use in controlling active camera networks aimed at 3D vision tasks such as surveillance, motion tracking, and 3D shape/appearance...
An interactive camera placement and visibility simulator for image-based vr applications (2006)
Andrei State, Greg Welch, Adrian Ilie
We describe an interactive software simulator that assists with the design of multi-camera setups for applications such as image-based virtual reality, three-dimensional reconstruction from still or...
Improving, expanding and extending 3D telepresence (2005)
Welch, Greg F., Fuchs, Henry, Mayer-Patel, Ketan, Cairns, Bruce, Sonnenwald, Diane H., Yang, Ruigang, ...
Ensuring Color Consistency across Multiple Cameras (2005)
Most multi-camera vision applications assume a single common color response for all cameras. However different cameras—even of the same type—can exhibit radically different color responses, and...
Improving, expanding and extending 3D telepresence (2005)
Welch, Greg F., Fuchs, Henry, Mayer-Patel, Ketan, Cairns, Bruce, Sonnenwald, Diane H., Yang, Ruigang, ...
3D Telepresence for off-line surgical training and on-line remote consultation (2004)
Welch, Greg F., Yang, Ruigang, Cairns, Bruce, Towles, Herman, State, Andrei, Ilie, Adrian, ...
Gradient Domain Context Enhancement For Fixed Cameras (2004)
We propose a class of enhancement techniques suitable for scenes captured by fixed cameras. The basic idea is to increase the information density in a set of low quality images by exploiting the...
3D Telepresence for off-line surgical training and on-line remote consultation (2004)
Welch, Greg F., Yang, Ruigang, Cairns, Bruce, Towles, Herman, State, Andrei, Ilie, Adrian, ...
Combining head-mounted and projector-based displays for surgical training (2003)
Kok-lim Low, Adrian Ilie, Greg Welch, Anselmo Lastra
We introduce and present preliminary results for a hybrid display system combining head-mounted and projector-based displays. Our work is motivated by a surgical training application, where it is...
Combining head-mounted and projector-based displays for surgical training (2003)
Kok-lim Low, Adrian Ilie, Greg Welch, Anselmo Lastra
We introduce and present preliminary results for a hybrid display system combining head-mounted and projector-based displays. Our work is motivated by a surgical training application, where it is...