DocumentCode :
2577824
Title :
Improved low delay distributed video coding
Author :
Liu, Hongbin ; Li, Yongpeng ; Liu, Xianming ; Ma, Siwei ; Zhao, Debin ; Gao, Wen
Author_Institution :
Dept. of Comput. Sci. & Technol., Harbin Inst. of Technol., Harbin, China
fYear :
2009
fDate :
6-8 May 2009
Firstpage :
1
Lastpage :
4
Abstract :
This paper proposes an image partition based approach to enhance side information quality in low delay distributed video coding (DVC). The proposed method employs a checkerboard pattern to group blocks of the Wyner-Ziv frame into two sets, where one set is DPCM encoded and the other set is DVC encoded. These two sets are encoded independently and decoded successively. At decoder, DPCM set will be first reconstructed. Then the temporal concealment tool, such as boundary matching algorithm, is performed to conceal blocks in the DVC set. An improved side information is subsequently obtained for DVC set, based on which a higher compression can be achieved. Simulation results indicate that a more promising performance can be achieved when compared with existing motion extrapolated approach.
Keywords :
code standards; data compression; differential pulse code modulation; image enhancement; image matching; video coding; DPCM encoding; Wyner-Ziv frame; boundary matching algorithm; checkerboard pattern; delay DVC set; distributed video coding; information quality enhancement; temporal concealment tool; video compression standard; Broadcasting; Computational modeling; Computer science; Decoding; Delay; Image reconstruction; Motion estimation; Transform coding; Video coding; Video compression; DPCM coding; Distributed video coding; quincunx pattern; side information;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Picture Coding Symposium, 2009. PCS 2009
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-4593-6
Electronic_ISBN :
978-1-4244-4594-3
Type :
conf
DOI :
10.1109/PCS.2009.5167464
Filename :
5167464
Link To Document :
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