Title: 3D Motion Capture by Computer Vision and Virtual Rendering: Allowing virtual telepresence to anyone using a personal computer with a webcam
Publisher: LAP LAMBERT Academic Publishing
Publication Date: 2012
Language: English
ISBN 10: 3659302546
ISBN 13: 9783659302541
Binding: Soft cover
Condition: New

About this title

Synopsis

Networked 3D virtual environments allow multiple users to interact with each other over the Internet. Users can share some sense of telepresence by remotely animating an avatar that represents them. However, avatar control may be tedious and still render user gestures poorly. This work aims at animating a user’s avatar from real time 3D motion capture by monocular computer vision, thus allowing virtual telepresence to anyone using a personal computer with a webcam. The approach followed consists of registering a 3D articulated upper-body model to a video sequence. The first contribution of this work is a method of allocating computing iterations under real-time constrain that achieves optimal robustness and accuracy. The major issue for robust 3D tracking from monocular images is the 3D/2D ambiguities that result from the lack of depth information. As a second contribution, this work enhances particle filtering for 3D/2D registration under limited computation constrains with a number of heuristics, the contribution of which is demonstrated experimentally. A parameterization of the arm pose based on their end-effector is proposed to better model uncertainty in the depth direction.

About the Author

Dr. David Antonio G�mez J�uregui has received his Ph.D. in Computer Science from Telecom SudParis in 2011. His research areas include Computer Vision, Human-Computer Interaction and Computer Graphics. He has published several research papers in reputed international conferences on Computer Vision, Signal Processing and Human-Computer Interaction.

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