Adaptive Rateless LDPC Code Used for Distributed Video Coding
- Resource Type
- Conference
- Authors
- Shu-ting, Cai; Qin-ruo, Wang; Yun, Xie; Ming, Yin
- Source
- 2009 WRI Global Congress on Intelligent Systems Intelligent Systems, 2009. GCIS '09. WRI Global Congress on. 3:131-135 May, 2009
- Subject
- Computing and Processing
Parity check codes
Video coding
Video compression
Decoding
Channel coding
Bipartite graph
Feedback
Libraries
Discrete cosine transforms
Intelligent systems
- Language
- ISSN
- 2155-6083
2155-6091
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 1-2dB gain of ratio distortion compared with LDPCA.