Title :
Adaptive Rateless LDPC Code Used for Distributed Video Coding
Author :
Cai Shu-ting ; Wang Qin-Ruo ; Xie Yun ; Yin Ming
Author_Institution :
Fac. of Autom., Guangdong Univ. of Technol., Guangzhou, China
Abstract :
To overcome the poor adaptive ability of the fixed-LDPC code applied to video compression, a kind of distributed video compression scheme based on rate less LDPC is proposed. A novel rate estimation scheme is also used in both decoder and encoder to reduce the complexity of decoder. While the added complexity of encoder and effected system ratio distortion performance is negligible. And the rateless LDPC supplies to design multiple code modes. Experiments results show that proposed scheme access the 1-2 dB gain of ratio distortion compared with LDPCA.
Keywords :
adaptive codes; decoding; encoding; parity check codes; video coding; adaptive LDPC code; decoder; distributed video coding; encoder; gain 1 dB to 2 dB; multiple code modes; rate estimation scheme; rateless LDPC code; system ratio distortion; video compression; Bipartite graph; Channel coding; Decoding; Discrete cosine transforms; Feedback; Intelligent systems; Libraries; Parity check codes; Video coding; Video compression;
Conference_Titel :
Intelligent Systems, 2009. GCIS '09. WRI Global Congress on
Conference_Location :
Xiamen
Print_ISBN :
978-0-7695-3571-5
DOI :
10.1109/GCIS.2009.24