Modified Truthiness Propagation Algorithm for Lossy Source Compression based on LDGM Codes

摘要：

This letter considers the lossy source compression of a binary symmetric source using low-density generator matrix LDGM) codes and truthiness propagation encoding algorithm. And a simple variant on the truthiness propagation is proposed by softening the a priori probability of the reconstructed source sequence. Comparisons with the truthiness propagation reveal that the proposed algorithm has better rate-distortion performance at low-to-medium code rates.

作者: Jianping Zheng Baoming Bai Ying Li Jingmei Liu

作者单位: State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, 710071, China State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, 710071, China 2State

会议类型: 国际会议

会议名称: 2010年无线通信与信号处理国际会议

会议地点: 上海

会议语种:英文

页码: 1-3

在线出版日期: 2010-10-20（万方平台首次上网日期，不代表论文的发表时间）