Streaming 3D shape deformations in collaborative virtual environment

Collaborative virtual environment has been limited on static or rigid 3D models, due to the difficulties of real-time streaming of large amounts of data that is required to describe motions of 3D deformable models. Streaming shape deformations of complex 3D models arising from a remote user’s manipulations is a challenging task. In this paper, we present a framework based on spectral transformation that encodes surface deformations in a frequency format to successfully meet the challenge, and demonstrate its use in a distributed virtual environment. Our research contributions through this framework include: i) we reduce the data size to be streamed for surface deformations since we stream only the transformed spectral coefficients and not the deformed model; ii) we propose a mapping method to allow models with multi-resolutions to have the same deformations simultaneously; iii) our streaming strategy can tolerate loss without the need for special handling of packet loss. Our system ...

• Type: Journal
• Year: 2010
• Where: VR
• Authors: Ziying Tang, Guodong Rong, Xiaohu Guo, B. Prabhakaran
• Keywords: 3d Models, Shape Deformations, Surface Deformations, Virtual Reality, VR 2010