Title :
A Parametric Proxy-Based Compression of Depth Movies
Author :
Verlani, Pooja ; Narayanan, P.J.
Author_Institution :
Center for Visual Inf. Technol., Hyderabad
Abstract :
Depth movies provide 2-D representations of a time-varying 3D scene. Multistream depth movies arise in many structure-capturing setups and have been used for image based rendering. They are bulky and carry redundant information. We propose a proxy-based compression scheme for multistream depth movies of a scene involving dynamic human actors. The input to our system is depth movies from different viewpoints and the calibration parameters to relate depths to 3D points. We use an articulated human model as a proxy to represent the common structure of the scene. The proxy is parametrized by various bone angles.
Keywords :
data compression; rendering (computer graphics); video coding; articulated human model; dynamic human actors; image based rendering; multistream depth movies; proxy-based compression scheme; time-varying 3D scene; Bones; Decoding; Encoding; Humans; Image coding; Image reconstruction; Layout; Motion pictures; PSNR; Transform coding; Compression; Depth Movies; Parametric Proxy; Proxy-Based Compression; Tele-Conferencing; Transmission;
Conference_Titel :
Data Compression Conference, 2008. DCC 2008
Conference_Location :
Snowbird, UT
Print_ISBN :
978-0-7695-3121-2
DOI :
10.1109/DCC.2008.72