摘要
树结构的构造适合小波图像编码,但并不适合视频编码,利用熵编码原理,提出了视频图像编码算法,先将每帧的残差补偿到原始序列,并通过块分割编码和上下文模型进行视频编码.研究结果表明:该算法在视觉质量、算法性能和编码效率上要优于传统的视频编码算法.
The tree structure quantification suits the wavelet image coding but doesn t suit the video coding.By using entropy coding principle,the authors put forward the video coding algorithm based on block segmentation and context model,which firstly compensates the initial sequence for the residua of each frame and then carries out the normal coding.Results show that the visual quality,performance,and coding efficiency of the new algorithm are superior to those of the traditional video coding algorithm.
出处
《吉首大学学报(自然科学版)》
CAS
2010年第2期-,共4页
Journal of Jishou University(Natural Sciences Edition)
基金
湖南省教育厅科学研究项目(08C714)
关键词
块分割
上下文模型
编码效率
编码算法
残差补偿
block segmentation
context model
coding efficiency
coding algorithm
residual compensation