한국인터넷방송통신학회논문지 (The Journal of the Institute of Internet, Broadcasting and Communication)

  • 제14권6호
  • /
  • Pages.99-105
  • /
  • 2014
  • /
  • 2289-0238(pISSN)
  • /
  • 2289-0246(eISSN)
한국인터넷방송통신학회 (The Institute of Internet, Broadcasting and Communication)
권호 표지
DOI QR코드

DOI QR Code

H.264에서 고속 매크로 블록 분할 결정 방법에 관한 연구

A Study on Fast Macroblock Partition Decision Method at H264

  • 송대건 (가천대학교 IT대학 전자공학과)
  • 투고 : 2014.11.15
  • 심사 : 2014.12.12
  • 발행 : 2014.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

H.264/MPEG-4 AVC는 높은 부호화 효율을 재현하는 동영상 부호화 방식이나 부호화 처리가 많다는 문제점이 있다. 또한 많은 부호화 처리에서는 Inter예측에 관련된 처리가 대부분을 차지하고 있으며 특히 H.264/MPEG-4 AVC에서는 그 비율이 높게 나타나있다. 기존의 동화상 부호화 방식도 Inter예측이 차지하는 비율이 높으나 H.264/MPEG-4 AVC에서는 가변 블록 크기 움직임 보상, 2개 이상의 복수 참조 프레임에 더하여 1/4 영상 정도의 움직임 보상을 이용 할 수 있도록 하고 있으며 부호화 처리량 증가가 커다란 하나의 요인이 되어 있다. 따라서 본 논문에서는 부호화 대상 매크로 블록 크기와 탐색 중에 참조하는 매크로 블록의 pixel 수의 차분을 이용함으로서 움직임 보상 블록크기의 탐색을 유효하게 감소시키는 방법에 대해 제안하였다.

The performance improvement in MPEG-4 AVC is provided at the expense for higher computational complexity. Most of the complexity is caused by Inter prediction. To improve coding efficiency, some functions are added in H.264/MPEG-4 AVC, such as variable block size motion compensation, multi reference frame and quarter-pel motion compensation. A fast macroblock partition decision method is proposed in this paper. The macroblock size is efficiently determined by using the pixel value difference between encoding and the referred macroblock.

키워드

참고문헌

  1. ISO/IEC 14496-10, "Advanced Video Coding," ITU-T Rec. H.264, 2003
  2. B.S. Min, S.J. Kim and D.K.Lim, "Enhancement of Wavelet-coded Image by Directional Filtering", Journal of the Korea Academia-Ind-ustrial cooperation Society, Vol. 9, No. 2, pp. 257-266, Apr. 2007.
  3. C.S. Kang, "Method for Improvement of Coding Efficiency in Scalability Extension of H.264/AVC", The Jurnal of the Institute of Electronics Engineers of Korea, Vol. 47, IE, No.2, pp. 21-26, Jun.. 2010.
  4. K.S.Park, M.J. Kim, J.H,Jun, S.R, Ryu and S.H, Kim, "Enhanced Mode Estimation Method for Intra/Inter Prediction in H.264/AVC," Journal of the Korea Academia-Industrial cooperation Society, Vol. 13, No. 4, pp. 1830-1838, Apr. 2012. https://doi.org/10.5762/KAIS.2012.13.4.1830
  5. M.T, Kim and I.H, Jee, "H.264 Encoding Technique of Multi-view Image expressed by Layered Depth Image," The Journal of rhe Institute of Webcasting, Internet and Telecommunication, Vol. 10, No. 1, pp. 81-90, Feb. 2010.
  6. http://iphome.hhi.de/suehring/tml/, "JVC Reference Software," version 9.6, May 2005
  7. Y.K.Tu, J.F.Yang, M.T, Sun, "Fast Variable-Size Block Motion Estimatation Using Merging Precedure With an Adaptive Threshold," Proc. IEEE International Conference on Multimedia & Expo, Bltmore, MD, USA, July 2003
  8. M.Kucukgoz, M.T.Sun, "Early-stop and Motion Vector Reusing for MPEG-2 to H.264 Transcoding," SPIE Proc. Visual Comm. Image Proc. Sn Jose, CA, USA, Jan.2004.
  9. Zhi Zhou, Ming-Ting Sun, Yuh-Feng Hu, "Fast Variable Block-size Motion Estimation Algorithms Based On Merge And Split Procedures For H.264/MPEG-4 AVC," IEEE IS-CAS 2004
  10. X.Li, G..Wu, "Fast Interger Pixel Motion Estimation," JVT-F011, 6th Meeting, Awaji Island, Japan, Dec, 2002
  11. Z.Chen, P.Zhou, Y.He, "Fast Motion Estimation for JVC," JVT-G016, 7th Meeting, Pattaya, Thailand, Mar. 2003
  12. K.K.Ma, G.Qiu, "An Improved Adaptive Rood Pattern Search For Fast Block-matching Motion Estimation in JVC/H.26L," Proc. IEEE International Symposium on Circuits and Systems, Bangkok, Thailand, May 2003
  13. JY.Tham, S.Ranganath, M.Ranganath, and A.AKassim, "Anovel unrestricted center-based diamond serch algorithm for block motion estimation," IEEE Trans, Circuits System Video Technol, vol 8, pp. 369-377, Aug 1998. https://doi.org/10.1109/76.709403
  14. D.G.Song, "Coast Evalution Techniques for Mode Selection in Video Coding", The Institute of Internet, Broadcasting and Communication, Vol 13, No.6, pp.275-280, Dec 2013.