中南大学学报(自然科学版)2012,Vol.43Issue(1):221-228,8.
基于快速边界强度判定的H.264去块滤波新算法
A new algorithm for H.264 de-blocking filter based on quick decision of boundary strength
摘要
Abstract
In the H.264/AVC standard, the de-blocking filtering is an effective way to improve the image quality and compression efficiency, but it contains a very high computational complexity. In the whole filtering process, the computation of the boundary strength (Bs) is the largest part, which is almost 90%. A new algorithm for H.264 de-blocking filter based on quick decision of Bs is proposed after analyzing the theory of Bs decision. The experimental data show that the FF algorithm is able to maintain the quality of codec video images, and compared with standard algorithm in JM, it can reduce nearly 50% of Bs decision time and nearly 20% of filtering time. Then, compared with any other improved filtering algorithms, it has its own advantages. Therefore, the FF algorithm can effectively decrease the computational complexity of de-blocking filter and can promote the realization of real-time transmission of video sequences.关键词
边界强度/帧间预测/片类型/去块滤波/H.264/AVC标准Key words
boundary strength/ inter prediction/ slice type/ de-blocking filter/ H.264/AVC standard分类
信息技术与安全科学引用本文复制引用
李康顺,金晶,王峰..基于快速边界强度判定的H.264去块滤波新算法[J].中南大学学报(自然科学版),2012,43(1):221-228,8.基金项目
国家自然科学基金资助项目(70971043) (70971043)
江西省自然科学基金资助项目(2008GZS0028) (2008GZS0028)