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The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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IBDI (Internal Bit-Depth Increase)와 메모리 압축 기술

  • Published : 2010.12.30
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Abstract

차세대 비디오 코덱인 HEVC (High Efficiency Video Coding)는 높은 코딩 성능과 상대적으로 낮은 처리 복잡도를 제공하기 위해 표준화 과정을 통해 여러 가지 코딩 툴들을 검증하고 있다. 이 중 메모리압축기술은IBDI 적용에 따른 참조 메모리 크기 및 메모리 대역폭 증가를 줄이거나 또는 8 비트 연산일지라도 초고해상도를 다루는 HEVC 특성상 ME, MC 과정에서 발생하는 메모리 대역폭을 줄이기 위해 고안된 기술이다. 본 기고는 다양한 메모리 압축 기술들을 소개하고 코딩 성능 측면, 계산 복잡도 측면, 그리고 메모리 대역폭 감소 측면에서 각 기술들을 비교하고 향후 메모리 압축 기술의 전개방향에 대해 설명하고자 한다.

Keywords

References

  1. T. Chujoh," Tool Experiment 2 on IBDI and memory compression,"JCTVC-A302, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Dresden, April 2010
  2. T. Chujoh," Tool Experiment 2 on IBDI and memory compression,"JCTVC-B302, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Geneva, July 2010
  3. K. Chono, et al., "JCT-VC AHG report: Memory compression,"JCTVC-C007, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  4. T. Chujoh, R. Noda, "Internal bit depth increase for coding efficiency,"ITU-T SG16 Q.6 Document, VCEGAE13, Marrakech, Jan. 2007
  5. T. Chujoh, R. Noda, "Internal bit depth increase except frame memory,"ITU-T SG16 Q.6 Document, VCEGAF07, San Jose, April 2007.
  6. H. Aoki, et al., "TE2: 1-D DPCM-based memory compression,"JCTVC-C093, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  7. H. Aoki, et al., "An extension of DPCM-based memory compression to 2-D structure with ADPCM,"JCTVCC094, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  8. H. Aoki, et al., "Performance improvement of DPCM-based memory compression by adaptive quantization" JCTVC-C095, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  9. V. Wahadaniah, et al., "TE2: Reference frame compression using image coder,"JCTVC-C073, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  10. M. Zhou, M. Budagavi, "TE 2: TI reference frame compression proposal,"JCTVC-C060, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  11. T. Chujoh," TE2: Adaptive scaling for bit depth compression on IBDI,"JCTVC-C075, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Guangzhou, October 2010
  12. F. Bossen," Common test conditions and software reference configurations,"JCTVC-B300, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG 16 WP3 and ISO/IEC JTC1/SC29/WG11, Geneva, July 2010