DocumentCode :
417568
Title :
Balanced multiple description video coding using optimal partitioning of the DCT coefficients
Author :
Matty, Kiran R. ; Kondi, Lisimachos P.
Author_Institution :
Dept. of Electr. Eng., State Univ. of New York, Buffalo, NY, USA
Volume :
3
fYear :
2004
fDate :
17-21 May 2004
Abstract :
In this paper, we propose a balanced multiple description video coding scheme which is based on the partitioning of the DCT coefficients. Our scheme splits the single-layered stream generated by a standard coder into two correlated and balanced (equal rates and distortions) substreams. The optimization is in the redundancy-rate-distortion sense, using Lagrangian relaxation for optimum allocation of redundancy amongst the blocks in the frame. A greedy algorithm, to meet the equal distortions criterion, and an algorithm to optimally achieve equal bit rates for the two descriptions is proposed. Our simulation results substantiate our claim of achieving balanced descriptions at high PSNR values, for any specified redundancy or any target bit rate for the encoder. Our design complies to the existing standards, i.e. each description can be independently decoded by any standard decoder.
Keywords :
algorithm theory; discrete cosine transforms; optimisation; rate distortion theory; redundancy; video coding; DCT coefficient optimal partitioning; Lagrangian relaxation; balanced multiple description video coding; dual balanced substreams; equal distortion substreams; equal rate substreams; frame block redundancy; greedy algorithm; high PSNR transmission; rate-distortion optimization; Bit rate; Code standards; Decoding; Discrete cosine transforms; Lagrangian functions; Rate-distortion; Redundancy; Source coding; Streaming media; Video coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
ISSN :
1520-6149
Print_ISBN :
0-7803-8484-9
Type :
conf
DOI :
10.1109/ICASSP.2004.1326527
Filename :
1326527
Link To Document :
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