吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 670-676.doi: 10.13229/j.cnki.jdxbgxb201702044
李晓妮1, 陈绵书1, 桑爱军1, 曲昭伟2
LI Xiao-ni1, CHEN Mian-shu1, SANG Ai-jun1, QU Zhao-wei2
摘要: 针对质量可伸缩高性能视频编码(SHVC)中递归式的四叉树编码单元(CU)划分引起的高计算复杂度的问题,提出了一种增强层快速编码算法。该算法充分利用层间编码单元深度值的相关性,根据基本层编码单元的深度信息预测增强层编码单元的深度值范围,跳过一些小概率的编码深度;在每一编码深度层下,利用当前预测单元(PU)与时间、空间以及父辈相邻PUs之间的相关性判断当前编码区域的复杂度,然后根据该区域的复杂度快速选择预测模式,从而进一步提高编码速度。实验证明,该算法与SHVC参考代码中的标准算法相比,在保证编码效率的前提下,编码时间可以平均节约78%左右。
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[1] Hannuksela M M, Ugur K, Lainema J, et al. Common specification text for scalable and multi-view extensions[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC),Geneva, Switzerland, 2013. [2] Boyce J, Ramasubramonian A K. SHVC conformance testing draft 1[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC), Strasbourg, France, 2014. [3] Li H, Li Z G, Wen C Y, et al. Fast mode decision algorithm for MODE-frame coding in fully scalable video coding[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2006, 16(7):889-895. [4] Ren J F, Kehtarnavaz N. Fast adaptive early termination for mode selection in H.264 scalable video coding[C]∥IEEE International Conference on Image Processing, San Diego, CA, 2008:2464-2467. [5] Jung S W, Baek S J, Park C S, et al. Fast mode decision using all-zero block detection for fidelity and spatial scalable video coding[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2009, 19(12): 1-5. [6] Kim S T, Konda K, Park C S, et al. Fast mode decision algorithm for inter-layer coding in scalable video coding[J]. IEEE Transactions on Consumer Electronics, 2009, 55(3): 1572-1580. [7] Yeh C H, Fan K J, Chen M J, et al. Fast mode decision algorithm for scalable video coding using bayesian theorem detection and markov process[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2010, 20(4): 563-574. [8] Choi K, Jang E S. Coding tree pruning based CU early termination[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC),Torin,Italy, 2011. [9] Yang J, Kim J, Won K, et al. Early SKIP detection for HEVC[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC), Geneva, Switzerland, 2011. [10] Gweon R H, Lee Y L, Lim J. Early termination of CU encoding to reduce HEVC complexity[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC), Torin, Italy, 2011. [11] Shen L Q, Zhang Z Y, An P. Fast CU size decision and mode decision algorithm for HEVC intra coding[J]. IEEE Transactions on Consumer Electronics, 2013, 59(1): 207-213. [12] Xiong J, Li H L, Wu Q B, et al. A fast HEVC Inter CU selection method based on pyramid motion divergence[J]. IEEE Transactions on Multimedia, 2014, 16(2): 559-564. [13] Shen X L, Yu L. CU splitting early termination based on weighted SVM[J/OL].[2015-04-11]. http://jivp.eurasipjournals.com/content/2013/1/4. [14] 桑爱军, 孙敏, 陈绵书, 等. 多维矢量矩阵变换域的运动矢量估计[J]. 中国光学, 2015, 8(2): 191-197. Sang Ai-jun, Sun Min, Chen Mian-shu, et al. Motion vector estimation in multi-dimensional vector matrix transform domain[J]. Chinese Optics, 2015, 8(2): 191-197. [15] 于洋, 崔新宇, 桑爱军, 陈绵书, 陈贺新, 李晓妮. 快速Walsh变换与多视角视频编码[J]. 中国光学, 2016, 9(2): 234-240. Yu Yang, Cui Xin-yu, Sang Ai-jun, et al. Fast Walsh transform and multi-view video coding[J]. Chinese Optics, 2016, 9(2): 234-240. [16] Tohidypour H R, Pourazad M T, Nasiopoulos P. Content adaptive complexity reduction scheme for quality/fidelity scalable HEVC[R].ITU-7/ISO/IEC Joint Collabrative Team on Video Coding(JCT-VC), Geneva, Switzerland, 2013. [17] Bailleul R, Cock J D, Walle R V D. Fast mode decision for SNR scalability in SHVC[C]∥2014 IEEE International Conference on Consumer Electronics (ICCE), Las Vegas, NV, 2014:193-194. [18] Ge Q Y, Hu D. Fast encoding method using CU depth for quality scalable HEVC[C]∥2014 IEEE Workshop on Advanced Research and Technology in Industry Applications (WARTIA), Ottawa,2014:1366-1370. [19] Zeng H Q, Cai C H, Ma K K. Fast mode decision for H.264/AVC based on macroblock motion activity[J]. IEEE Transactions on Circuits and Systems for Video Technology, 2009, 19(4): 1-11. |
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