利用边缘方向检测实现H.264帧内预测编码的新算法

J4 ›› 2009, Vol. 36 ›› Issue (6): 1126-1131.

• Original Articles • Previous Articles Next Articles

Fast mode decision algorithm for intra-prediction in H.264 with detection of edge directions

HE Yi-bao¹;CHEN Zai-xiu³;BI Du-yan¹;MA Xin-zhen²;ZHAO Peng¹

(1. Engineering College, Air Force Eng. University, Xi'an 710038， China;
2. School of Science, Air Force Eng. University, Xi'an 710038， China;
3. School of Automation and Electronic Information, Sichuan Univ. of Sci. & Eng., Zigong 643000， China)

Received:2008-09-10 Online:2009-12-20 Published:2010-01-20
Contact: HE Yi-bao E-mail:gudujianboboo@yahoo.com.cn

Abstract

Abstract:

A tool for intra prediction is introduced in the new video coding standard-H.264, and this technique can cut down the spatial redundancy effectively. Though intra prediction can improve the efficiency of the intra encoder, it is undoubtedly computationally intensive. To overcome this drawback, a novel fast intra prediction algorithm is proposed in this paper. By making use of the division of the macro-block, the edge direction is detected first and the direction of texture is estimated. Then the intra mode decision will be made among several most possible modes, which can diminish the number of the calculation. For variable video sequences, simulation results show that with the proposed algorithm the time of the intra coding can be reduced about 72.64％ while keeping a close quality and precision.

Key words: H.264, Intra prediction, division of macro-block, detection of edge directions

CLC Number:

TP919.8

HE Yi-bao;CHEN Zai-xiu;BI Du-yan;MA Xin-zhen;ZHAO Peng. Fast mode decision algorithm for intra-prediction in H.264 with detection of edge directions[J].J4, 2009, 36(6): 1126-1131.

[1]	LI Qiang,ZUO Jing,WANG Haining. Fast algorithm for intra prediction in quality SHVC [J]. Journal of Xidian University, 2020, 47(2): 60-66.
[2]	WU Wei;CHEN Jian;SONG Bin. Novel video coding distortion estimation algorithm for H.264/AVC [J]. J4, 2013, 40(3): 1-6+35.
[3]	JIANG Jie;GUO Baolong;MO Wei;JIAO Changzhe;SUN Wei. Fast intra coding algorithm using smooth region detection for HEVC [J]. J4, 2013, 40(3): 194-200.
[4]	CHU Xiuqin;WU Shuo;CHANG Fang;HE Wenqing. Efficient implementation of the CAVLC entropy encoder based on FPGA [J]. J4, 2012, 39(3): 100-105.
[5]	YUAN Hui;CHANG Yi-lin;LU Zhao-yang;LI Ming. Intra prediction method for reducing prediction mode information [J]. J4, 2010, 37(6): 981-986+1016.
[6]	ZHANG Ming;BI Du-yan;LI Cheng; Lü Dan. Robust temporal error concealment for H.264 with adaptive block sizes [J]. J4, 2007, 34(7): 95-99.
[7]	WANG Mei-hua1;PEI Qing-qi2;FAN Ke-feng3. Integrality authentication schema of H.264 video based on the fragile watermark [J]. J4, 2007, 34(5): 823-827.
[8]	SHI Ying-bo;LI Yun-song;ZHANG Jian-long. An efficient VLSI architecture of the CABAC decoder in H.264 [J]. J4, 2006, 33(6): 844-848.
[9]	AI Da(1);CHANG Yi-lin(1);LUO Zhong(2);WANG Jing(2). Object based H.264 video coding for packet loss resilience [J]. J4, 2006, 33(4): 524-528.
[10]	SONG Bin(1);ZHOU Ning-zhao(1);CHANG Yi-lin(1);LUO Zhong(2). A novel fast intra prediction algorithm in H.264/AVC [J]. J4, 2006, 33(1): 15-182.
[11]	SONG Bin;CHANG Yi-lin;ZHOU Ning-zhao. Decision of all-zero blocks before integer transform and quantization in H.264 [J]. J4, 2005, 32(4): 518-522.

Fast mode decision algorithm for intra-prediction in H.264 with detection of edge directions

PDF (PC)

Like

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 11

Metrics

Comments

Recommended 0