Sequential coding of correlated sources

Author

Viswanathan, Harish ; Berger, Toby

Author_Institution

Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA

fYear

1997

fDate

29 Jun-4 Jul 1997

Firstpage

272

Abstract

Sequential coding of correlated sources (X₁,X₂) can be viewed as a generalization of the successive refinement problem. The first stage involves the description of a source X₁ at distortion level D₁. Upon receiving this information, the receiver may be interested in a version of a correlated source X₂ as opposed to being interested in a refined version of X₁. A video source can be modeled as a sequence of frames each of which consists of a two-dimensional array of pixels. The pixels in each frame of the video scanned in a particular order can be treated as a source (in an information-theoretic sense) and a sequence of frames would correspond to a sequence of correlated sources. With this perspective the video compression task may be viewed as sequential coding of correlated sources

Keywords

correlation methods; discrete systems; image sequences; memoryless systems; source coding; video coding; 2D pixels array; correlated sources; discrete memoryless sources; distortion level; frame sequence; sequential coding; successive refinement problem; video compression; video source; Decoding; Encoding; Iron; Rate distortion theory; Source coding; Video compression; Visual perception;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on

Conference_Location

Ulm

Print_ISBN

0-7803-3956-8

Type

conf

DOI

10.1109/ISIT.1997.613190

Filename

613190