A spatial hierarchical compression method for 3D streaming animation

When distributing 3D contents real-time over a network with a narrow bandwidth such as a telephone line, methods for streaming and data compression can be considered indispensable. In previous work, we made possible the real-time streaming of 3D animation data on a network with a narrow bandwidth such as a telephone line by partitioning motion data for humanoid characters (data obtained by motion capture, for example full frame data at 30 frames/sec) into packets and then carrying out compression by culling data along the time axis. However, as a 3D scene becomes more complex, the number of humanoid characters also increases. Accordingly, the transmission rate also increases, becoming greater than the available bandwidth and making real-time distribution impossible. In this paper, we concentrate on the problem of real-time distribution, describing a new data packet format which allows flexible scalability of the transmission rate, and a data compression method, SHCM, which maximizes t...

• Type: Conference
• Year: 2000
• Where: VRML
• Authors: Toshiki Hijiri, Kazuhiro Nishitani, Tim Cornish, Toshiya Naka, Shigeo Asahara
• Keywords: Data Compression, Humanoid Character, Internet Technology, Telephone Line, VRML 2000