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New Method for Quantization Parameter Assignment at Low Bit-rates for Hierarchical B Pictures in Video Coding
Author(s): 
Pages: 27-29,51
Year: Issue:  17
Journal: Video Engineering

Keyword:  分级B帧可伸缩视频编码量化参数低码率;
Abstract: 分级B帧编码结构是H.264/AVC和可伸缩视频编码中实现时域可分级所采用的高效编码方法.在低码率下,按照提案JVT-P014中的分级B帧量化参数(QP)分配方案进行编码会产生较大的视频质量波动,严重影响视频的主观质量.针对这一问题,提出一种新的分级B帧QP分配方法.该方法考虑了人眼视觉暂留特性,能够有效减小低码率下视频帧之间的质量波动.实验结果证明在低码率编码条件下,该算法与JVT-P014方案...
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