Content Adaptive Quantization Scheme Based on Visual Perception for Video Coding

摘要：

This paper proposes a new quantization scheme which fully exploits the human visual perception and the local eye sensitivity characteristic in two layers.This new quantization scheme classifies macro-blocks into different categories and classifies frequency coefficients in the same block into different frequency strips,then adjusts the quantization parameter according to different categories or strips to reserve more sensitive details of video.Experiments results show that the new quantization scheme can achieve better subjective video quality with lower bitrates.

作者: HAN Zheng TANG Kun CUI Huijuan

作者单位: State Key Laboratory on Microwave and Digital Communications,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）