인트라 매크로블록의 휘도성분 분산을 이용한 압축률 향상

The development of improve the compression ratio through the variance of the luminance component of the intra macroblock

  • 김준 (단국대학교 전자전기공학과) ;
  • 김영섭 (단국대학교 전자전기공학과)
  • Kim, June (Department of Electrical and Electronics Engineering, Dankook University) ;
  • Kim, Youngseop (Department of Electrical and Electronics Engineering, Dankook University)
  • 투고 : 2013.02.26
  • 심사 : 2013.03.18
  • 발행 : 2013.03.31

초록

H.264/AVC is an authoritative international video coding standard which shows code and efficiency more improved than the existing video standards. Above all, the parameter block mode of H.264/AVC significantly contributes much to high compression efficiency. However, as the occasion demands, users tend to pass while overlooking the part that can produce a little higher compression efficiency. We, taking notice of this point, are designed to bring in much higher compression efficiency by gathering up the overlooked parts. This paper suggests the algorithm that produces efficient performance improvement by using the histogram of luminance in the pixel unit (Macroblock) of respective prediction block and applying specific thresholds. The experimental results proves that the technique proposed by this paper increases the compression efficiency of the existing H.264/AVC algorithm by 0.4% without any increase in the whole encoding time and PSNR complexity.

키워드

참고문헌

  1. Chang-Uk Jeong, Jin-Ku Choi, Takeshi Ikenaga, Satoshi Goto, "A Diamond Web-grid Search Algorithm Combined with Efficient Stationary Block Skip Method for H.264/AVC Motion Estimation", Korean Society for Internet Information, vol.11, no.2, pp. 49-60, April, 2010.
  2. Kwang Su Junga, Sea Nae Parka, Dong Gyu Sima, Yoon Jin Leeb, Gwang Hoon Parkb, Seoung Jun Oha, Sey Yoon Jeongc, and Jin Soo Choic, "Unidirectional 4x4 Intra Prediction Mode for H.264/AVC Coding Efficiency", The Korean Society of Broadcast Engineers, vol.15, no.6, pp. 815-829, 2010.
  3. Byoungman An, Youngseop Kim and Oh-Jin Kwon," Low-Complexity Motion Estimation for H.264/AVC Through Perceptual Video Coding", Korean Society for Internet Information, vol.5,no.8, pp. 1444-1456, August,2011.
  4. J.-H. Kim B.-G. Kim, "Efficient intra-mode decision algorithm for inter-frames in H.264/AVC video coding", IET Image Process., vol.5, mo.3, pp. 286- 295, 2011 https://doi.org/10.1049/iet-ipr.2009.0097
  5. Jeong-mee Moon, Jae-ho Kim, "A Rate-Distortion Estimation Method for Fast Mode Decision in H.264", The Korean Institute of Communications and Information Sciences(KICS), vol.33, no.1, pp. 34-44, January, 2008.
  6. Jieon Kima, Dae-Young Noha, Seyoon Jeongb, Jinho Leeb, and Seoung-Jun Oha, "New Intra Coding Scheme for Improving Video Coding Efficiency", The Korean Society of Broadcast Engineers, vol.16, no.3, pp. 448-461, May, 2011.