Title :
Mesh-based error-scalable video object codec for variable bandwidth multimedia communications
Author :
Minh, Trun S. ; Benois-Pineau, J. ; Fazekas, K. ; Gschwindt, A.
Author_Institution :
Dept. of Broadband Infocommunication Syst., Budapest Univ. of Technol. & Econ., Hungary
Abstract :
The work introduces a complete chain of video object compression. The process is based on an automatic extraction of video objects from raw video. The recent MPEG-4 standard philosophy, including mesh models and wavelet-based compression are involved in the scheme. Constrained Delaunay meshes are used to represent articulated video objects in a flexible manner conveying shape and motion information. The wavelet transform is applied to residual errors for scalable and efficient compression. Results on MPEG-4 test sequences for very low bitrate video communications are encouraging.
Keywords :
data compression; decoding; image representation; mesh generation; motion compensation; multimedia communication; transform coding; video coding; wavelet transforms; MPEG-4 standard; articulated video objects; automatic extraction; constrained Delaunay meshes; low bitrate video communications; mesh models; mesh-based error-scalable video object codec; motion information; residual errors; shape information; variable bandwidth multimedia communications; video object compression; video objects; wavelet transform; wavelet-based compression; Bandwidth; Bit rate; Codecs; Data mining; MPEG 4 Standard; Multimedia communication; Shape; Testing; Video compression; Wavelet transforms;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1038132
