Title :
Lexicographic bit allocation for MPEG video coding
Author :
Hoang, Dzung T. ; Vitter, Jeffrey Scott ; Linzer, Elliot L.
Author_Institution :
Digital Video Syst. Inc., Santa Clara, CA, USA
Abstract :
We consider the problem of allocating bits among pictures in an MPEG video coder to equalize the visual quality of the coded pictures, while meeting buffer and channel constraints imposed by the MPEG video buffering verifier We address this problem within a framework that consists of three components: (1) a bit production model for the input pictures, (2) a set of bit-rate constraints imposed by the video buffering verifier and (3) a novel lexicographic criterion for optimality. Under this framework, we derive simple necessary and sufficient conditions for optimality that lead to efficient algorithms
Keywords :
buffer storage; code standards; decoding; optimisation; quantisation (signal); telecommunication standards; video coding; MPEG standards; MPEG video coder; MPEG video coding; bit production model; bit-rate constraints; buffer constraints; channel constraints; coded pictures; decoder model; efficient algorithms; input pictures; lexicographic bit allocation; necessary condition; optimal lexicographic criterion; perceptual quantisation; pictures; sufficient condition; video buffering verifier; visual quality equalisation; Algorithm design and analysis; Bit rate; Computer science; Decoding; Humans; Nonlinear distortion; Production; Quantization; Streaming media; Video coding;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.647771
