Fast P-Frame Mode Decision Algorithm Using Monotonicity of Jmode

WU Yin-hua; JIN Long-xu; ZHANG Ke

doi:10.3788/YJYXS20132802.0266

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Fast P-Frame Mode Decision Algorithm Using Monotonicity of J_mode

Imaging Technology & Image Processing | 更新时间：2020-08-12

- Fast P-Frame Mode Decision Algorithm Using Monotonicity of J_mode
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 2, Pages: 266-272(2013)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院大学北京,中国,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132802.0266
  CLC： TN941.1;TP301.6
- Received：10 July 2012，
  
  Revised：01 September 2012，
  
  Published：15 April 2013
- 稿件说明：
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吴银花, 金龙旭, 张柯. 应用Jmode值单调性的快速P帧模式选择算法[J]. 液晶与显示, 2013,28(2): 266-272

WU Yin-hua, JIN Long-xu, ZHANG Ke. Fast P-Frame Mode Decision Algorithm Using Monotonicity of Jmode[J]. , 2013,28(2): 266-272
吴银花, 金龙旭, 张柯. 应用Jmode值单调性的快速P帧模式选择算法[J]. 液晶与显示, 2013,28(2): 266-272 DOI： 10.3788/YJYXS20132802.0266.

WU Yin-hua, JIN Long-xu, ZHANG Ke. Fast P-Frame Mode Decision Algorithm Using Monotonicity of Jmode[J]. , 2013,28(2): 266-272 DOI： 10.3788/YJYXS20132802.0266.

摘要

为了提高编码速度

针对H.264/AVC中运算量较大的P帧模式选择部分

提出了一种新的快速选择算法。该算法依次通过

mode

值单调性检测、基于子块运动向量(MV)的水平与垂直方向选择

这两个步骤逐步缩小候选帧间模式检测范围

同时提出了基于最佳帧间模式的帧内模式选择方法

选择性地检测帧内模式

从而有效避免不必要的模式检测过程。实验结果表明

相对JM中模式全搜索算法

改进算法平均减小了约63.80%的编码时间

而只带来了微小的编码性能损失。

Abstract

In order to speed up video encoding

a new fast algorithm is proposed

on P-frame mode decision which has high complexity in H.264/AVC. In the proposed algorithm

the check range of candidate inter modes are reduced gradually through the following two steps: the monotonicity check of

mode

and the selection of horizontal or vertical orientation based on sub-blocks' motion vector (MV). Meanwhile

an intra mode checking method based on the best inter mode is proposed

which check intra modes selectively. Thus

it is avoided effectively that checking unnecessary modes. The experiment results show that

compared with exhaustive mode decision algorithm in the JM

the proposed algorithm reduced the encoding time about by 63.80% on average

while brought negligible performance degradation.

关键词

Keywords

references

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A fast P frame mode decision algorithm using the monotonicity of Jmode

Related Author

吴银花

金龙旭

张柯

Related Institution

中科院长春光学精密机械与物理研究所2. 中科院长春光机所

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