H.264/AVC全零块检测算法原理及性能分析

doi:10.3969/j.issn.1006-2475.2011.03.014

计算机与现代化 ›› 2011, Vol. 1 ›› Issue (3): 52-56.doi: 10.3969/j.issn.1006-2475.2011.03.014

H.264/AVC全零块检测算法原理及性能分析

刘志成¹，周启亚²

1．湖南铁道职业技术学院信息工程系，湖南株洲 412001；2．湖南铁路科技职业技术学院信息技术系,湖南株洲 412000

收稿日期:2010-11-29 修回日期:1900-01-01 出版日期:2011-03-18 发布日期:2011-03-18

Analysis of Principle and Performance About AZB Detection Algorithm for H.264/AVC

LIU Zhi-cheng¹, ZHOU Qi-ya²

1. Department of Information Engineering, Hunan Railway Professional Technology College, Zhuzhou 412001, China;2. Department of Information Technology, Hunan Vocational College of Railway Technology, Zhuzhou 412000, China

Received:2010-11-29 Revised:1900-01-01 Online:2011-03-18 Published:2011-03-18

摘要/Abstract

摘要： 在进行变换和量化前进行全零块检测，能大大节省消耗在DCT变换这一费时环节的时间，同时不会影响编码质量，全零块检测技术在实现实时编码场合中有着广泛的应用。本文在理论上对H.264/AVC的全零块检测原理进行深入分析，给出4×4全零块检测的一般模型，从检测率及时间性能上比较几个针对H.264/AVC的全零块检测算法，可为研究者在实际应用中实现或选择全零块检测算法提供依据。

关键词: H.264/AVC, 全零块, 检测算法

Abstract: Conducting the all-zero block (AZB) detection before the transform and quantization may save the time needed for DCT transform operations, which are intensively time-consuming, and can not affect the encoding quality. The technique of AZB detection is widely used in real-time encoding occasion. This paper is focused on analysis of the principle about AZB detection algorithm for H.264/AVC. The general model of AZB detection is presented. A few AZB detection algorithms for H.264/AVC are compared in detection rate and time performance, which provide the basis for investigators implementing or selecting their appropriate AZB detection algorithm in real applications.

Key words: H.264/AVC, AZB, detection algorithm

中图分类号:

TP391.41

刘志成;周启亚. H.264/AVC全零块检测算法原理及性能分析[J]. 计算机与现代化, 2011, 1(3): 52-56.

LIU Zhi-cheng;ZHOU Qi-ya. Analysis of Principle and Performance About AZB Detection Algorithm for H.264/AVC[J]. Computer and Modernization, 2011, 1(3): 52-56.

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H.264/AVC全零块检测算法原理及性能分析

Analysis of Principle and Performance About AZB Detection Algorithm for H.264/AVC

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