Modelling and Motion Capture Techniques for Virtual Environments -

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Résumé :
The CAPTECH'98 workshop took place at the University of Geneva on November 26?27, 1998, sponsored by FIP Working Group 5.10 (Computer Graphics and Virtual Worlds) and the Suisse Romande regional doctoral seminar in computer science. The subject of the conference was ongoing research in data capture and interpretation. The goals of capturing real world data in order to perceive, understand, and interpret them and then reacting to them in a suitable way are currently important research problems. These data can be very diverse: sounds, emotions, shapes, motions, forces, muscles, actions, etc. Once captured, they have to be treated either to make the invisible visible, or to understand a particular phenomenon so as to formulate an appropriate reaction, or to integrate various information in a new multimedia format. The conference included six sessions of presented papers and three panel discussions. Invited speakers treating various aspects of the topic were: Professor R. Earnshaw from Bradford University, Professor T. L. Kunii from Hosei University, and Professor P. Robert from EPFL. Professor K. Bauknecht, of the University of Z?rich, President of IFIP, offered the welcoming address. Mr. E. Badique, project officer for the EU in Brussels, discussed recent results of the EU ACTS research program. Finally, the Geneva Computer Animation '98 Film Festival highlighted the evening of November 26.

Sommaire:
Human Motion Analysis.- Motion Analysis in Clinical Practice Using Ambulatory Accelerometry.- A Robust Human-Silhouette Extraction Technique for Interactive Virtual Environments.- Local and Global Skeleton Fitting Techniques for Optical Motion Capture.- 3D Part Recognition Method for Human Motion Analysis.- Human Motion Capture and Manipulation.- Motion Capture Data Manipulation and Reuse via B-splines.- Motion Abstraction and Mapping with Spatial Constraints.- Artificial Neural Networks for Motion Emulation in Virtual Environments.- Synthesis of Human Motion Using Kalman Filter.- Real-Time Hand and Head Tracking for Virtual Environments Using Infrared Beacons.- Image and Video Manipulation.- A Graphics Compiler for a 3-Dimensional Captured Image Database and Captured Image Reusability.- VideoVR: A Real-Time System for Automatically Constructing Panoramic Images from Video Clips.- The Video Yardstick.- Motion Control.- Real-Time Inverse Kinematics through Constrained Dynamics.- Goal-Directed Navigation for Animated Characters Using Real-Time Path Planning and Control.- Real-Time Requirements for the Implementation of Speech-Controlled Artificial Actors.- Human Body and Objects 3D Reconstruction.- 3D Modeling from Captured Images Using Bi-directional Ray Traversal Method.- Face Models from Uncalibrated Video Sequences.- A 3D Reconstruction System for Human Body Modeling.- Image/Video Based Facial Animation.- B?zier Volume Deformation Model for Facial Animation and Video Tracking.- Head Modeling from Pictures and Morphing in 3D with Image Metamorphosis Based on Triangulation.- Facial Animation by Synthesis of Captured and Artificial Data.