基于纹理相似性的高效视频编码帧间预测优化算法

吴宪云; 高媛媛; 刘凯; 李云松

doi:10.11999/JEIT150672

基于纹理相似性的高效视频编码帧间预测优化算法

doi: 10.11999/JEIT150672

2.
(西安电子科技大学综合业务网理论及关键技术国家重点实验室西安 710071) ②(西安电子科技大学计算机学院西安 710071)

基金项目:

中国博士后科学基金(2013M540735)，国家自然科学基金(61301291, 61301287, 61222101)，111工程(B08038)，陕西省科技创新团队项目，中央高校基本科研业务基金

计量
- 文章访问数: 1261
- HTML全文浏览量: 91
- PDF下载量: 761
- 被引次数: 0
出版历程
- 收稿日期: 2015-06-04
- 修回日期: 2015-11-25
- 刊出日期: 2016-03-19

An Optimized Inter-prediction Algorithm for High Efficiency Video Coding Based on Texture Similarity

2.
(State Key Laboratory of Integrated Services Networks, Xidian University, Xi&rsquo

Funds:

China Postdoctoral Science Foundation (2013M540735), The National Natural Science Foundation of China (61301291, 61301287, 61222101), 111 Project (B08038), Shaanxi Province Science and Technology Innovation Team, Central University Basic Research Fund

摘要

摘要: 为了提高高效率视频编码(HEVC)的编码效率，该文对帧间预测算法进行优化，提出一种基于纹理相似性的快速深度判决算法。随着视频分辨率的提高，视频序列中的空域冗余也随之增加，HEVC通过增加编码块尺寸来提高预测效率，代价就是编码复杂度的急剧增加。通过对视频序列分析可知，图像中的平滑区域与细节区域在相邻帧中存在很大的相关性。该文利用相邻已编码帧的相邻编码块的深度信息，来快速判决当前待编码块的深度信息。对于平滑区域，快速判决待编码最大编码单元的最大深度，以减少小块编码单元的模式判决；对于细节区域，快速判决待编码最大编码单元的最小深度，以减少大块编码单元的模式判决。实验结果表明，与原始的HEVC算法相比，该文所提算法编码比特率平均增加约0.13%以内，PSNR的平均降幅为0.09 dB，算法运行时间平均减少了约50%。
- 高效视频编码 /
- 帧间预测 /
- 深度判决
Abstract: In this paper, an optimized inter-prediction algorithm is proposed for High Efficiency Video Coding (HEVC) based on video texture similarity. With the increasing of the video resolution, spatial statistical redundancy is increased meanwhile. HEVC improves the coding efficiency by using large coding units, therefore increases the coding complexity significantly. For video sequence, the flat area and texture area are high correlated between adjacent frames. In this paper, previous encoded depth or split depth information is used to determine fast the depth of current encoding coding unit. For flat area, the algorithm predicts the maximum depth to reduce the mode decision for smaller coding units. For texture area, the algorithm can fast determine the minimum depth which can save the mode decision for larger coding units. Experimental result shows that the proposed algorithm can reduce 50% coding complexity compared with original HEVC algorithm. Meanwhile, the average PSNR only decreases 0.09 dB and the average coding rate is increased about 0.13%.
- High Efficiency Video Coding (HEVC) /
- Inter-prediction /
- Depth decision

HTML全文

参考文献(23)

SULLIVAN G, OHM J R, HAN W J, et al. Overview of the high efficiency video coding (Hevc) standard[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2012, 22(12): 1649-1668. doi: 10.1109/TCSVT.2012.2221191.

WIEGAND T, SULLIVAN G, LUTHRA A, et al. Overview of the H.264/AVC video coding standard[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2013, 13(7): 560-576. doi: 10.1109/TCSVT.2003.815165.

李维, 张和仙, 杨付正. 高效率视频编码快速模式判决算法[J]. 西安交通大学学报, 2013, 47(8): 104-110.

LI Wei, ZHANG Hexian and YANG Fuzheng. A fast mode decision algorithm for high efficiency video coding[J]. Journal of Xian Jiaotong University, 2013, 47(8): 104-110.

SHEN Liquan, LIU Zhi, ZHANG Xinpeng, et al. An effective CU size decision method for HEVC encoders[J]. IEEE Transactions on Multimedia, 2013, 15(2): 465-470. doi: 10.1109/TMM.2012.2231060.

齐美彬, 陈秀丽, 杨艳芳, 等. 高效率视频编码帧内预测编码单元划分快速算法[J]. 电子与信息学报, 2014, 36(7): 1699-1705. doi: 10.3724/SP.J.1146.2013.01148.

QI Meibin,CHEN Xiuli, YANG Yanfang, et al. Fast coding unit splitting algorithm for high efficiency video coding intra prediction[J]. Journal of Electronics Information Technology, 2014, 36(7): 1699-1705. doi: 10.3724/SP.J. 1146.2013.01148.

成益龙, 滕国伟, 石旭利, 等. 一种快速 HEVC 帧内预测算法[J]. 电视技术, 2012, 36(21): 4-7.

CHENG Yilong, TENG Guowei, SHI Xuli, et al. Fast intra prediction algorithm for HEVC[J]. Video Engineering, 2012, 36(21): 4-7.

蒋洁, 郭宝龙, 莫玮, 等. 利用平滑区域检测的HEVC帧内编码快速算法[J]. 西安电子科技大学学报, 2013, 40(3): 194-200.

JIANG J, GUO Baolong, MO Wei, et al. Fast intra coding algorithm using smooth region detection for HEVC[J]. Journal of Xidian University, 2013, 40(3): 194-200.

KIM IlKoo, LEE Sunil, PIAO Yinji, et al. Coding efficiency comparison of new video coding standards: HEVC vs VP9 vs AVS2 video[C]. 2014 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), 2014: 1-6, Chengdu, China. doi: 10.1109/ICMEW.2014.6890700.

MALLIKARACHCHI T, FERNANDO A, and ARACHCHI H K. Effective coding unit size decision based on motion homogeneity classfication for HEVC Inter prediction[C]. 2014 IEEE International Conference on Image Processing(ICIP), Paris, 2014: 3691-3695.

TU Qin, GUO Xiaoqing, MEN Aidong, et al. An adaptive CU depth selection mechanism based on visual sensitivity for HEVC inter coding[C]. IEEE 79th Vehicular Technology Conference(VTC Spring), Seoul, Korea, 2014: 1-5.

YOO H M and SUH J W. Fast coding unit decision based on skipping of inter and intra prediction units[J]. Electronics Letters, 2014, 50(10): 750-752. doi: 10.1049/el.2014.0451.

SUN L, AU O C, ZHAO C, et al. Rate distortion modeling and adaptive rate control scheme for High Efficiency Video Coding (HEVC)[C], 2014 IEEE International Symposium on Circuits And Systems (ISCAS), Melbourne, Australia, 2014: 1933-1936.

李双十. 基于视频统计特性的HEVC快速帧间预测算法研究[D]. [硕士论文], 西安电子科技大学, 2014.

LI Shuangshi. A study of fast inter prediction algorithm based on video statistical properties for HEVC[D]. [Master dissertation], Xidian University, 2014

HOU Xiaotao and XUE Yonglin. Fast coding unit partitioning algorithm for HEVC[C]. 2014 IEEE International Conference on Consumer Electronics (ICCE), Seoul, Korea, 2014: 7-10 . doi: 10.1109/ICCE.2014.6775886.

张和仙. 下一代视频编码标准 HEVC 帧间预测优化算法研究[D]. [硕士论文], 西安电子科技大学, 2013.

ZHANG Hexian. Research on optimization of inter prediction in HEVC[D]. [Master dissertation], Xidian University, 2013.

李元, 何小海, 钟国韵, 等. 一种基于时域相关性的高性能视频编码快速帧间预测单元模式判决算法[J]. 电子与信息学报, 2013, 35(10): 2365-2370. doi: 10.3724/SP.J.1146.2013.00028.

LI Yuan, HE Xiaohai, ZHONG Guoyun, et al. A fast inter-frame prediction unit mode decision algorithm for high efficiency video coding based on temporal correlation[J]. Journal of Electronics Information Technology, 2013, 35(10): 2365-2370. doi: 10.3724/SP.J.1146.2013.00028.

施引文献

资源附件(0)

访问统计