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可伸缩视频编码的自适应QP级联算法 被引量:3

Adaptive QP Cascading Algorithm for Scalable Video Coding
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摘要 针对可伸缩视频编码标准中采用的分级B帧预测结构,提出一种图像级的内容自适应量化参数(QP)级联算法。在该算法中,任意一帧图像的最终QP值由分级预测的结构及该图像内所有宏块的运动预测模式决定。实验结果证明,与目前SVC标准采用的技术相比,该算法最多可以提升0.363dB的编码性能。 Aiming at hierarchical B prediction structure utilized in Scalable Video Cuding(SVC) standard, this paper proposes a picture-level Content-Adaptive Quantization Parameter Cascading(CAC) algorithm. The Quantization Parameter(QP) value for each picture is decided based on the hierarchical prediction structure and prediction modes of the macroblocks in the picture. Experimental result demonstrates that compared with the technique used in SVC standard, the algorithm increases rate distortion performance by 0.363 dB.
出处 《计算机工程》 CAS CSCD 北大核心 2010年第6期215-217,共3页 Computer Engineering
基金 国家自然科学基金资助项目(60672161) 国家"863"计划基金资助项目(2006AA01Z317)
关键词 可伸缩视频编码 分级预测 内容自适应量化参数 Scalable Video Coding(SVC) hierarchical prediction content-adaptive Quantization Paranleter(QP)
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参考文献6

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同被引文献12

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  • 4Truong Cong Thang, Jung Won Kang, Yoo Jeong-Ju, et al. Multilayer Adaptation for MGS-based SVC Bitstream[C]// Proceedings of the 16th ACM International Conference on Multimedia. Vancouver, Canada: ACM Press, 2008: 689-692.
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  • 7Thang Truong-Cong, Kang Jung-Won, Yoo Jeong-Ju. Multilayer Adaptation for MGS-based SVC Bitstream[C] //Proceedings of the 16th ACM International Conference on Multimedia. [S. 1.] : ACM Press, 2008: 689-692.
  • 8Liu Yang, Li Zhengguo, Soh Yeng-Chai. Rate Control of H.264/ AVC Scalable Extension[J]. IEEE Transaction on Circuits and System for Video Technology, 2008, 18(1): 116-121.
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