A Novel Multiple Description Coding Frame Based on Reordered DCT Coefficients and SPIHT Algorithm

摘要：

A novel MDC algorithm based on Discrete Cosine Transform (DCT) and the Set Partition in Hierarchical Trees (SPIHT) is proposed in this paper. Different from the commonly used DCT algorithm, all the transformed coefficients are reshaped into the wavelet decomposition structure to facilitate the use of the SPIHT algorithm. Then the direction-based information is used to form the three different channels. By using different bit rates to encode the information from three different orientations, i.e., vertical, horizontal and diagonal directions, the redundancy is introduced into the three channels. Every channel contains the hybrid information from three different directions. Experimental results show the advantages of this novel algorithm and the theoretical analysis has also been studied.

关键词： Wavelet Multiple Description Coding(MDC) Set Partitioning In Hierarchical Tree (SPIHT) Discrete Cosine Transform(DCT)

作者: Lin-Lin Tang Zhe-Ming Lu Fa-Xin Yu

作者单位: Electronic and Communication Department Harbin Institute of Technology Shenzhen Graduate School Shen School of Aeronautics and Aeronautics,Zhejiang University Hangzhou 310027,P.R.China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 71-74

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）