Embedded Progressive Joint Source-Channel Coding Based on Zerotree
This paper proposes a joint source-channel coding scheme based on integer wavelet zerotree, which can produce embedded progressive code stream with low bit-rate. In this scheme, by scanning the source with a set of pre-set thresholds,value and location information of significant wavelet coefficients are achieved, encoded and transmitted respectively. The code stream resulted from this procedure can be transmitted losslessly and progressively over noiseless channels, or embeddedly and relative reliably at a low bit-rate over noisy channels (random or burst noise). Experiments show that this scheme can get high PSNR and compression rate over noisy channels, and can transmit the source more reliably and robustly with low bit-rate over varying channels. Therefore it is more competent.for applications in wireless communication.
Integer wavelet High-frequency zerotree Joint source-channel coding LIS(Location Information Stream) VIS(Value Information Stream)
CHEN Shu-zhen YANG Shen SHE Kun
School of Electronic Information Wuhan University Wuhan, China
国际会议
武汉
英文
384-388
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）