CAI Shu-ting, WANG Qin-ruo, XIE Yun, et al. A Kind of Distributed Video Compression Scheme Based on Rateless Low-Density Parity-Check Codes[J]. Acta Electronica Sinica, 2009, 37(11): 2535-2540.
CAI Shu-ting, WANG Qin-ruo, XIE Yun, et al. A Kind of Distributed Video Compression Scheme Based on Rateless Low-Density Parity-Check Codes[J]. Acta Electronica Sinica, 2009, 37(11): 2535-2540.DOI:
To overcome the poor adaptive ability of the fixed-rate Low-Density Parity-Check (LDPC) codes when applied to video compression
a kind of distributed video compression scheme based on rateless LDPC is proposed.The main idea of the algorithm is that part of variable node is punctured to adjust the puncturing ratio for rate adaptive ability.A novel rate estimation method is also proposed in encoder
it can solve the problem of needing the feedback channel for rate control in distributed video coding currently
and supply the rateless LDPC to design multiple code mode.Experiments results show that proposed scheme access the 1-2dB gain of rate distortion (RD) compared with rate-adaptive LDPC Accumulate (LDPCA) codes.The decoder complexity magnitude of proposed scheme is 2 orders less than the motion-oracle algorithm.