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MPEG-4验证模型中的位率控制策略 被引量:2

Rate Control Strategy of MPEG-4 Verification Model
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摘要 1引言 始于20世纪70年代的数字视频处理技术经过三十多年的发展,取得了很大的进展,其中国际标准化组织ISO/IEC下属的MPEG专家组制定的标准系列包括已经制定完成的MPEG-1、MPEG-2、MPEG-4、MPEG-7标准以及正在制定当中的MPEG-21标准. As a new generation of multimedia coding standard. MPEG-4 aims to satisfy all kinds of low bitrate applications. Accordingly some new coding ideas and technologies are introduced into MPEG-4. This paper discusses the new rate control strategy recommended by MPEG-4 Verification Model-a rate control strategy based on quadratic rate distortion model, and then analyzes and evaluates the strategy, finally some suggestions for improving the strategy are proposed.
出处 《计算机科学》 CSCD 北大核心 2003年第10期167-169,共3页 Computer Science
基金 国家高技术研究发展计划专项经费(2001AA114142)基金
关键词 MPEG-4 验证模型 位率控制策略 多媒体编码标准 图像编码 视频编码 MPEG, Rate control, Quadratic modeling, Buffer, Quantization
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同被引文献16

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