彩色视频的四维MDCT及矩阵量化编码  

Four-dimension MDCT of color video and matrix quantization coding

作　　者：杜相文[1] 陈贺新[1] 赵志杰[1] 

机构地区：[1]吉林大学通信工程学院图像处理实验室,吉林长春130025

出　　处：《吉林大学学报（信息科学版）》2003年第S1期12-16,共5页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金资助国际合作与交流项目(60211130507);国家自然科学基金资助项目(60172046);吉林省科技厅攻关项目

摘　　要：对赵岩的彩色视频的四维矩阵模型理论及压缩编码研究中的量化方法进行了改进,提出了矩阵量化的方法。矩阵量化克服了矢量量化码书敏感的问题,而且该方法不需要训练码书,不需要预测和运动补偿,易于快速实现。四维矩阵量化之后,又给出了进行变长编码时所需要的扫描顺序。变长编码后进行Huffman编码,这与经典的压缩方法是一致的。Four-dimension matrix theory is presented in [1], and used in color video sequence coding. The quantization method is improved in this paper. Matrix quantization is adopted. Matrix quantization resolves codebook sensitivity of vector quantization. It doesn t need codebook training, prediction and motion compensation. And it is easy to be realized in a short time. Then a kind of scanning sequence is presented. After four-dimension matrix quantization, Huffman coding is proceeded which is consistent with clas...

关 键 词：四维MDCT 矩阵量化 彩色视频 编码 

分 类 号：TN919.81[电子电信—通信与信息系统]