Broadcasting and Media Magazine (방송과미디어)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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복호화기 예측 부호화 기술

  • 양정엽 (성균관대학교 정보통신공학부) ;
  • 전병우 (성균관대학교 정보통신공학부)
  • Published : 2010.12.30
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Abstract

복호화기 예측 부호화 기술은 종래의 예측 부호화 기술과 매우 다른 새로운 압축방식이다. 즉, 부호화기에서 모든 예측과정을 수행한 후, 복호화기가 예측부호화 오류로부터 원래의 데이터를 복원하는데 필요한 예측정보를 모두 전송하였던 기존 기술과는 달리, 이 예측정보를 복호화기 스스로 찾아내어 사용하는 방식이다. 이러한 이유로 압축 부호화 성능은 매우 향상 되었으나 반대로 복호화기는 예측치를 찾아내기 위하여 매우 많은 계산량을 소모하여야 한다는 단점도 있다. 본 고에서는 복호화기 예측 부호화 기술의 다양한 방식과 이러한 문제점을 어떤 방식으로 개선하였는지 알아본다.

Keywords

References

  1. JVT of ISO/IEC MPEG and ITU-T VCEG, "Draft ITU-T Recommendation and Final Draft International Standard of JOint Video Specification," ITU-T Rec. H.264, ISO/IEC 14496-10 AVC, (2003).
  2. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "Meeting report of the first meeting of the JCT -VC," JCT -VC doc. JCTVC-A200, (April 2010).
  3. SO/IEG MPEG and ITU- T VCEG , "Joint Call for Proposals on Video Compression Technology," ISO/IEG MPEG doc. N11113 and ITU- T SG16 VCEG doc. VCEG-AM91, (Jan. 2010) .
  4. JCT -VC of ISO/IEC MPEG and ITU - T VCEG, "Description of video coding technology proposal by RWTH Aachen University," JCT -VC doc. JCTVC-A112, (April 2010).
  5. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, ''TEl: RWTH partner report on DMVD," JCT -VC doc. JCTVCB030, (July 2010).
  6. JeT -VC of ISO/IEG MPEG and ITU-T VCEG , "A Technical Description of MediaTek's Proposal of the JeT -VC CIP," JCT -VC doc. JCTVC-A109, (April 2010) .
  7. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Decoder-Side Motion Vector Derivation with SWltchable Template Matching," JCT -VC doc. JCTVC-B076, (July 2010).
  8. JeT -VC of ISO/IEG MPEG and ITU-T VCEG, "Description of video coding technology proposal by Huawei Technologies & Hisilicon Technologies," JCT -VC doc. JCTVC-A111, (April 2010).
  9. JCT -VC of ISO/IEC MPEG and ITU- T VCEG, "TE1: Huawel report on DMVD Improvements," JCT -VC doc. JCTVC-B037, (July 2010).
  10. CT -VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Huawei report on DMVD improvements in TMuC," JCT -VC doc. JCTVC-C097, (Oct. 2010).
  11. JCT-VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Decoder-side motion vector derivation report from Qualcomm," JCT -VC doc. JCTVC-B097, (July 2010).
  12. JeT -VC of ISO/IEG MPEG and ITU-T VCEG, "Description of video coding technology proposal: self derivation of motion estimation and adaptive (Wiener) loop filtering," JcT -VC doc . JCTVC-A106, (April 2010).
  13. JCT-VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Fast techniques to improve self derivation of motion estimation," JCT -VC doc. JCTVC-B047, (July 2010).
  14. JCT -VC of ISO/IEC MPEG and ITU- T VCEG, "TE1 : Report of self derivation of motion estimation improvement in TMuC," JCT -VC doc. JCTVC-C127, (Oct. 2010).
  15. JGT -VC of ISO/lEG MPEG and ITU-T VGEG, "Decoder-Side Motion Estimation with Modified Reference List," JCT -VC doc. JCTVC-B026, (July 2010).
  16. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "Description of video coding technology proposal by JVC," JCT-VC doc. JCTVC-A108, (April 2010).
  17. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Refinement Motion Compensation using Decoder-side Motion Estimation," JCT -VC doc. JCTVC-B032, (July 2010).
  18. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "TE1: Implementation report of Relinement Motion Compensation using DMVD on TMuC," JCT -VC doc. JCTVC-C138, (Oct. 2010). [191
  19. JCT-VC of ISO/IEC MPEG and ITU-T VCEG, "Description of video coding technology proposal by Mitsubishi Electric," JCT -VC doc. JCTVC-A107, (April 2010).
  20. JCT -VC of ISOI/IEC MPEG and ITU-T VCEG, "Report of Tool Experiment 1: Decoder-Side Motion Vector Derivation," JCT -VC doc. JCTVC-B069, (July 2010).
  21. JCT -VC of ISOI/IEC MPEG and ITU- T VCEG, 'TE1 report: Implicit Direct Vector Derivation," JCT -VC doc. JCTVC-C124, (Oct. 2010).
  22. JCT -VC of ISO/IEC MPEG and ITU-T VCEG, "Description of video coding technology proposal by LG Electronics," JCT -VC doc. JCTVC-A110, (April 2010).
  23. JCT -VC of ISO/IEC MPEG and ITU- T VCEG, "Description of video coding technology proposal by France Telecom, NTT, NTT DOCOMO, Panasonic and Technicolor,"JCT-VC doc. JCTVC-A114, (April 2010).
  24. JCT-VC of ISO/IEC MPEG and ITU-T VCEG, "Samsung's Response to the Call for Proposals on Video Compression Technology,"JCT-VC doc. JCTVC-A124, (April 2010).
  25. JCT-VC of ISO/IEC MPEG and ITU-T VCEG, "Response to Joint Call for Proposals on Video Compression Technology by Renesas,"JCT-VC doc. JCTVC-A126, (April 2010).
  26. Y. Suzuki, C. S. Boon, and T. K. Tan, "Interframe coding with template matching averaging,"Proc. IEEE Int. Conf. Image Processing, vol.3, pp.409-412, (2007).