Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
J. Ostermann , AT&T Bell Labs., Holmdel, NJ, USA
For object-based analysis-synthesis coding (OBASC) of moving images, each moving object is described by three parameter sets defining its motion, shape and surface color. They are coded using an object-dependent parameter coding. Compared to block-based hybrid coding, OBASC requires the additional transmission of shape parameters. This is only justified, if it increases the overall coding efficiency. The efficiency of the block-based and the object-based coders depends to a large extend on the size of the moving objects. Objects smaller than 256 pels should be coded by a block-based coder whereas larger objects are preferably coded by an object-based coder.<
image coding, motion estimation, image colour analysis, signal synthesis
J. Ostermann, "The block-based coder mode in an object-based analysis-synthesis coder," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 960-964.