Title :
Coding of arbitrarily shaped video objects in MPEG-4
Author :
Ostermann, Jörn ; Jang, Euee S. ; Shin, Jae-Seob ; Chen, Tsuhan
Author_Institution :
AT&T Labs. Res., Red Bank, NJ, USA
Abstract :
MPEG-4 Visual, that part of the upcoming MPEG-4 standard describing the coding of natural and synthetic video signals, allows the encoding of video objects using motion, texture and shape information. In this paper, the shape coding algorithms and related texture coding algorithms that were thoroughly evaluated within MPEG-4 are reviewed. The evaluation leading to the selection of a block-based shape coder based on a context-based arithmetic encoder/decoder with motion compensation as well as padding and shape adaptive DCT for texture coding are presented
Keywords :
arithmetic codes; code standards; discrete cosine transforms; image texture; motion compensation; transform coding; video coding; MPEG-4; arbitrarily shaped video objects; block-based shape coder; context-based arithmetic encoder/decoder; motion compensation; natural video signals; padding; shape adaptive DCT; shape coding algorithms; synthetic video signals; texture coding algorithms; video coding; Arithmetic; Computer aided engineering; Decoding; Discrete cosine transforms; Encoding; Layout; MPEG 4 Standard; Motion compensation; Shape control; Streaming media;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.647958
