A Fast Mode Decision Algorithm for H.264 Video Coding Standard

WU Ju-ying; LI Chun-lin; WANG Xuan-ming

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A Fast Mode Decision Algorithm for H.264 Video Coding Standard

更新时间：2025-07-16

- A Fast Mode Decision Algorithm for H.264 Video Coding Standard
- Acta Electronica Sinica Vol. 33, Issue 3, Pages: 496-499(2005)
- 作者机构：
  
  1. 空军工程大学,西安,710077
  2. 西安电子科技大学计算机网络与信息安全教育部重点实验室,西安,710071
  3. 中国科学院软件研究所计算机科学重点实验室,北京,100080
  4. 空军工程大学西安,710077
  5. 西安电子科技大学计算机网络与信息安全教育部重点实验室西安,710071
  6. 中国科学院软件研究所计算机科学重点实验室北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391.4
- Published：2005
- 稿件说明：
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WU Ju-ying, LI Chun-lin, WANG Xuan-ming. A Fast Mode Decision Algorithm for H.264 Video Coding Standard[J]. Acta Electronica Sinica, 2005, 33(3): 496-499.
DOI：

WU Ju-ying, LI Chun-lin, WANG Xuan-ming. A Fast Mode Decision Algorithm for H.264 Video Coding Standard[J]. Acta Electronica Sinica, 2005, 33(3): 496-499. DOI：

摘要

在H.264编码算法中

为了给图像的各个区域选择合适的编码模式

需要对所有可能的模式分别进行计算

这使编码模式选择过程异常复杂.针对此问题

本文提出了一种快速的编码模式选择算法

该算法利用时间和空间相关性预先对图像各区域可能采用的编码模式进行判定

从而使模式选择的过程大大简化.实验结果表明:在编码器的信息率—失真性能没有明显下降的前提下

该算法最多可以使编码速度提高20%以上.

Abstract

In the encoding algorithm of H.264

each possible coding mode should be checked to choose the best one for each part of the picture

thus make the process of mode-decision rather complex.In this paper

a fast mode decision algorithm is proposed to reduce the complexity of mode decision procedure in H.264 encoder.

in which possible modes are judged beforehand based on the temporal and spacial correlation and the whole procedure of mode decision is simplified then.The results show that the algorithm can increase the encoding speed by more than 20% at most with little degradation in rate-distortion performance.

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Investigation of Multi-Reference-Frame Prediction in H.264

Design of a Highly Parallel and Double-Level Pipelined CAVLC Encoder for H.264

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