Error Resilient Arithmetic Coding for Wireless Robust Image Transmission
Compressed multimedia data is highly vulnerable to error propagation in noisy channel and even a single bit error can cause severe image distortion. To improve the reliability of image transmission, in this paper we propose a practical JPEG2000 based error resilient arithmetic coding (ERAC) scheme for wireless robust image transmission. Forbidden symbols are added at the encoder side and an efficient MAP sequence decoding method of ERAC is developed to estimate the original symbols. Furthermore, the error resilient performance of ERAC is intensively discussed. The entire scheme is designed and optimized on a fixed point DSP, which has already been successfully applicable to robust image transmission under complexity consideration. The experimental results demonstrate the effectiveness of our proposed scheme in improving the end-to-end reconstructed image quality 3 to 5 .... in PSNR at the expense of less than 5％ redundancy.
Yipeng Sun Yukui Pei Mai Xu Jianhua Lu
State Key Laboratory on Microwave and Digital Communications Dept. of Electronic Engineering, Tsingh State Key Laboratory on Microwave and Digital CommunicationsDept. of Electronic Engineering, Tsinghu
国际会议
南京
英文
1-5
2011-11-09（万方平台首次上网日期，不代表论文的发表时间）