A Fast Rough Mode Decision Algorithm for HEVC

다국어 초록 (Multilingual Abstract)

HEVC is the high efficiency video coding standard, which provides better coding efficiency contrasted with theother video coding standard. But at the same time the computational complexity increases drastically. Thirtyfivekinds of intra-prediction modes are defined in HEVC, while 9 kinds of intra prediction modes are definedin H.264/AVC. This paper proposes a fast rough mode decision (RMD) algorithm which adopts the smoothnessof the up-reference pixels and the left-reference pixels to decrease the computational complexity. The three stepsearch method is implemented in RMD process. The experimental results compared with HM13.0 indicate thatthe proposed algorithm can save 39.7% of the encoding time, while Bjontegaard delta bitrate (BDBR) isincreased slightly by 1.35% and Bjontegaard delta peak signal-to-noise ratio (BDPSNR) loss is negligible.

참고문헌 (Reference)

1 X. Yu, "VLSI friendly fast CU/PU mode decision for HEVC intra encoding: leveraging convolution neural network" 1285-1289, 2015

2 G. J. Sullivan, "Overview of the high efficiency video coding (HEVC) standard" 22 (22): 1649-1668, 2012

3 L. L. Wang, "Novel adaptive algorithm for intra prediction with compromised modes skipping and signaling processes in HEVC" 23 (23): 1686-1694, 2013

4 L. L. Wang, "H. 264 fast intra mode selection algorithm based on direction difference measure in the pixel domain" 1037-1040, 2009

5 Y. Zhang, "Gradient-based fast decision for intra prediction in HEVC" 1-6, 2012

6 L. Zhao, "Fast mode decision algorithm for intra prediction in HEVC" 1-4, 2011

7 H. Zhang, "Fast intra mode decision for high efficiency video coding(HEVC)" 24 (24): 660-668, 2013

8 Q. Zhang, "Fast intra mode decision for depth coding in 3DHEVC" 28 (28): 1203-1226, 2017

9 L. Gao, "Fast intra mode decision algorithm based on refinement in HEVC" 517-520, 2015

10 J. H. Lee, "Fast intra mode decision algorithm based on local binary patterns in High Efficiency Video Coding (HEVC)" 270-272, 2015

11 T. L. da Silva, "Fast HEVC intra prediction mode decision based on EDGE direction information" 1214-1218, 2012

12 S. Cho, "Fast CU splitting and pruning for suboptimal CU partitioning in HEVC intra coding" 23 (23): 1555-1564, 2013

13 X. Shang, "Fast CU size decision and PU mode decision algorithm in HEVC intra coding" 1593-1597, 2015

14 M. Ramezanpour, "Fast CU size and prediction mode decision method for HEVC encoder based on spatial features" 10 (10): 1233-1240, 2016

15 F. Duanmu, "Fast CU partition decision using machine learning for screen content compression" 4972-4976, 2015

16 S. Na, "Edge-based fast mode decision algorithm for intra prediction in HEVC" 11-14, 2014

17 L. Shen, "An effective CU size decision method for HEVC encoders" 15 (15): 465-470, 2013

18 B. Min, "A fast CU size decision algorithm for the HEVC intra encoder" 25 (25): 892-896, 2015