Three-dimensional computer vision: a geometric viewpoint
Three-dimensional computer vision: a geometric viewpoint
Multiparty videoconferencing at virtual social distance: MAJIC design
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Information superhighways
View synthesis using stereo vision
View synthesis using stereo vision
BT Technology Journal
Novel view synthesis in tensor space
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
View Synthesis by Trinocular Edge Matching and Transfer
WACV '98 Proceedings of the 4th IEEE Workshop on Applications of Computer Vision (WACV'98)
An object-based system for stereoscopic viewpoint synthesis
IEEE Transactions on Circuits and Systems for Video Technology
Telepresence: Understanding People as Content
Presence: Teleoperators and Virtual Environments
Real-time multi-step view reconstruction for a virtual teleconference system
EURASIP Journal on Applied Signal Processing
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It can be argued that an ideal teleconferencing system would offer a sense of presence comparable to that afforded by real face-to-face meetings. In contrast, traditional desktop videoconferencing loses essential socially important phenomena such as true perspective views, live facial expressions and tacit body language. This paper reports a prototype concept demonstrator under development at BT Laboratores that addresses these issues in order to make the use of videoconferencing a normal social activity rather than a means of merely getting messages across the channel. The idea is to place participants from different remote sites in a coherent virtual environment naturally extended from the real world. The participants have correct views of each other and the illusion of close proximity. The rationale is to build on the demonstrator and enhance it with increasingly realistic functional components as the relevant technical solutions become available. Results are presented of a stereo-based vision system which can synthesise novel (or virtual camera) perspective views of the scene from two fixed camera views. The technique is currently capable of providing ‘look-around‘ views and a certain degree of navigation capability around the scene. Research issues are discussed together with the practical difficulties that remain to be solved in implementing a true-view, telepresence, videoconferencing system.