The block-based coder mode in an object-based analysis-synthesis coder

Author

Ostermann, Jörn

Author_Institution

AT&T Bell Labs., Holmdel, NJ, USA

Volume

2

fYear

1994

fDate

31 Oct-2 Nov 1994

Firstpage

960

Abstract

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

Keywords

image coding; image colour analysis; motion estimation; signal synthesis; block-based coder mode; block-based hybrid coding; coding efficiency; moving image coding; moving objects size; object motion; object shape; object-based analysis-synthesis coder; object-dependent parameter coding; parameter sets; shape parameters transmission; surface color; Code standards; Image analysis; Image coding; Image color analysis; Image motion analysis; Image sequences; Motion analysis; PSNR; Shape; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-6405-3

Type

conf

DOI

10.1109/ACSSC.1994.471602

Filename

471602