Title :
Sequential coding of correlated sources
Author :
Viswanathan, Harish ; Berger, Toby
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
fDate :
29 Jun-4 Jul 1997
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;
Conference_Titel :
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location :
Ulm
Print_ISBN :
0-7803-3956-8
DOI :
10.1109/ISIT.1997.613190
