Low complexity video transcoding algorithm from H.264 to HEVC

被引：0
|
作者：
Jiang, Wei [1 ]
Tian, Xiang [1 ]
Chen, Yao-Wu [1 ]
机构：
[1] Institute of Advanced Digital Technology and Instrumentation, Zhejiang University, Zhejiang Provincial Key Laboratory for Network Multimedia Technologies
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2014年 / 48卷 / 06期
关键词：
H.264; HEVC; Mode decision; Motion estimation; Transcoding;
D O I：
10.3785/j.issn.1008-973X.2014.06.005
中图分类号：
学科分类号：
摘要：
A low complexity video transcoding algorithm from H.264 video to the next generation video compression standard the high efficiency video coding (HEVC) was proposed in order to reduce the computational time consumed during the transcoding process. By making full use of the H.264 compressed video information included in the bitstream, the coding complexity of each frame was analyzed based on the correlation between image complexities and coding bits, and then the searching depth range was adaptively decided based on the analysis results. By exploiting the mapping correlations of Skip mode in HEVC and all modes in H.264, an early decision of Skip mode was then introduced. Through the statistical analysis of coding bits, a fast prediction unit partition selection for both symmetric and asymmetric partitions was described. Finally, the motion estimation process was optimized according to the motion similarity between H.264 and HEVC bitstreams. Experimental results show that, compared to the reference methods, the proposed algorithm achieves a significant improvement on transcoding speed, while maintaining similar rate-distortion performance.
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页码：994 / 1003
页数：9
相关论文
共 17 条
  • [1] Weigand T., Sullivan G.J., Bjontegaard G., Et al., Overview of the H.264/AVC video coding standard, IEEE Transactions Circuits and Systems for Video Technology, 13, 7, pp. 560-576, (2003)
  • [2] Sullivan G.J., Ohm J.R., Han W.J., Et al., Overview of the high efficiency video coding (HEVC) standard, IEEE Transactions Circuits and Systems for Video Technology, 22, 12, pp. 1649-1668, (2012)
  • [3] Li B., Sullivan G.J., Xu J.Z., Comparison of compression performance of HEVC Draft 7 with AVC high profile, Document JCTVC-J0236, (2012)
  • [4] Ahmad I., Wei X.H., Sun Y., Et al., Video transcoding: an overview of various techniques and research issues, IEEE Transactions Multimedia, 7, 5, pp. 793-804, (2005)
  • [5] Su C.J., Lin Y., Zero-block inter/intra mode decision for MPEG-2 to H.264/AVC inter P-frame transcoding, IET Image Process, 52, 6, pp. 494-504, (2010)
  • [6] Moriron S., Faria S., Navarro A., Et al., Video transcoding from H.264/AVC to MPEG-2 with reduced computational complexity, Signal Processing: Image Communication, 24, pp. 637-650, (2009)
  • [7] Martinez J.L., Fernandez-Escribano G., Kalva H., Et al., Wyner-Ziv to H.264 transcoder for low cost video encoding, IEEE Transactions Consumer Electronics, 55, 3, pp. 1453-1461, (2009)
  • [8] Kalva H., Kunzelmann P., Dynamic motion estimation for transcoding P frames in H.264 to MPEG-2 transcoders, IEEE Transactions Consumer Electronics, 54, 2, pp. 657-662, (2008)
  • [9] Bialkowski J., Barkowsky M., Kaup A., Fast video transcoding from h.263 to H.264/MPEG-4 AVC, Multimedia Tools and Applications, 35, 2, pp. 127-146, (2007)
  • [10] Fernandez-Escribano G., Kalva H., Martinez J.L., Et al., An MPEG-2 to H.264 video transcoder in the baseline profile, IEEE Transactions Circuits and Systems for Video Technology, 20, 5, pp. 763-768, (2010)
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