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Design of HEVC CABAC Encoder With Parallel Processing of Bypass Bins
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  • Journal title : Journal of IKEEE
  • Volume 19, Issue 4,  2015, pp.583-589
  • Publisher : Institude of Korean Electrical and Electronics Engineers
  • DOI : 10.7471/ikeee.2015.19.4.583
 Title & Authors
Design of HEVC CABAC Encoder With Parallel Processing of Bypass Bins
Kim, Doohwan; Moon, Jeonhak; Lee, Seongsoo;
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 Abstract
In the HEVC CABAC, the probability model is updated after a bin is encoded and next bin is encoded based on the updated probability model. Conventional CABAC encoders can encode only one bin per cycle, which cannot increase the encoding throughput. The probability model does not need to be updated in the bypass bins. In this paper, a HEVC CABAC encoder is proposed to increase encoding throughput by parallel processing of bypass bins. The designed CABAC encoder can process either a regular bin or maximum 4 bypass bins in a cycle. On the average, it can process 1.15~1.92 bins in a cycle. Synthesized in 0.18 um technology, its gate count, maximum operating speed, and the maximum throughput are 78,698 gates, 136 MHz, and 261 Mbin/s, respectively.
 Keywords
HEVC;CABAC;multi-bin;high-efficiency;parallel-processing;
 Language
Korean
 Cited by
 References
1.
B. Bross, W. Han, J. Ohm, G. Sullivan, and T. Wiegand, "JCTVC-L1003_v34: High efficiency video coding (HEVC) text specification draft 10," Joint Collaborative Team on Video Coding (JCT-VC), Jan. 2013.

2.
HEVC software repository HM-11 reference model, https://hevc.hhi.fraunhofer.de/svn/svn_HEVCSoftware/branches/HM-11.0-dev/

3.
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4.
D. Pham, J. Moon, D. Kim, and S. Lee, "Hardware Implementation of HEVC CABAC Binary Arithmetic Encoder", Journal of IKEEE, vol. 18, no. 4, pp. 630-635, Dec. 2014. crossref(new window)

5.
D. Kim, J. Moon, and S. Lee, "Hardware Implementation of HEVC CABAC Context Modeler", Journal of IKEEE, vol. 19, no. 2, pp. 254-259, Jun. 2015. crossref(new window)

6.
D. Zhou, J. Zhou, W. Fei, and S. Goto, "Ultra-High-Throughput VLSI Architecture of H.265/HEVC CABAC Encoder for UHDTV Applications", IEEE Transactions on Circuits and System for Video Technology, vol. 25, no. 3, pp. 497-507, Mar. 2015. crossref(new window)