| 基于运动补偿的多级矢量量化联合编码算法 |
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| 引用本文： | 王好贤,王孟腾,孙圣和.基于运动补偿的多级矢量量化联合编码算法[J].哈尔滨商业大学学报(自然科学版),2005,21(2):170-175. |
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| 作者姓名： | 王好贤 王孟腾 孙圣和 |
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| 作者单位： | 哈尔滨工业大学,自动化测试与控制系,黑龙江,哈尔滨,150001;深圳艾默生网络能源有限公司,广东,深圳,518057 |
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| 摘 要： | 研究了基于运动补偿的多级矢量量化编码方法．针对传统算法编码质量较低的问题，在保持量化器结构不变的情况下，借鉴维特比编码方式，提出多级矢量量化联合编码算法，并采用部分失真快速码字搜索算法提高编码速度．仿真实验表明，与传统MSVQ算法相比，本算法不仅提高了编码图像的质量。而且降低了编码速率．
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| 关 键 词： | 视频压缩 运动补偿 矢量量化 多级矢量量化 联合码字搜索 |
| 文章编号： | 1672-0946(2005)02-0170-05 |
| 修稿时间： | 2004年11月17 |
Study on joint multistage vector quantization coding algorithm based on motion compensation |
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| WANG Hao-xian,WANG Meng-teng,SUN Sheng-he.Study on joint multistage vector quantization coding algorithm based on motion compensation[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2005,21(2):170-175. |
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| Authors: | WANG Hao-xian WANG Meng-teng SUN Sheng-he |
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| Institution: | WANG Hao-xian~1,WANG Meng-teng~2,SUN Sheng-he~1 |
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| Abstract: | This paper thoroughly discusses the multistage VQ video compression algorithm based on motion compensation. In allusion to the problem of poor decoded image quality caused by the traditional algorithm, the author proposes a joint-stage code search algorithm by reference of viterbi coding, while keeping the vector quantizer unchanged. The combination with partial distortion search helps to expedite the coding process. The experiment results demonstrate that this algorithm can effectively enhance the fidelity of the coded image, and in addition, reduce the coding bit-rate. |
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| Keywords: | video compression motion compensation vector quantization multistage VQ joint-stage code search |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
