A New Edge-based Complexity Measure for Intrarate Estimation in H.264/AVC

摘要：

An efficient I-frame R-Q model is still needed by the rate control in the latest H.264/AVC video coding standard. Some recent works introduced the gradient-based image complexity measure into the frame-layer intra rate estimation in H.264/AVC, but the issue at the macroblock layer was not discussed. We propose a new edge-based complexity measure for this bit rate estimation problem at both the frame-layer and the macroblocklayer. The LOG operator is used in the edge extraction and an adaptive threshold selection method is proposed. The experiments show that the proposed edge-based measure has a good linear relation with the intra frame bit rate.

关键词： H.264/AVC intra-frame image complexity edge detection bit rate estimation

作者: Chao Wang Xuanqin Mou

作者单位: Institute of Image Processing & Pattern Recognition, Xi’an Jiaotong University Xi’an, Shaanxi, 710049, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1133-1136

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）