参考資料2 情報源符号化部 H.265 | MPEG-H HEVC 規格の概要

1 1 | MPEG-H HEVC Ve r. 2013 5 23 2 1. 2. 3. WPP 4. 5. PB 6. 7. CABAC 8. 9. 3 1. | MPEG-H HEVC(High Efficiency Video Coding HEVC) | MPEG-4 AV C(Advanced Video Coding AV C) ITU-T International Telecommunications Union Telecommunication Standardization Sector Working Party(WP) 3/16 ISO/IEC International Organization for Standardization International Electrotechnical Commission MPEG Moving Picture Experts Group 2010 1 JCT-VC Joint Collaborative Team on Video Coding Standard Development 2 1990 ITU-T MPEG-H HEVC ISO IEC JTC1 Joint Technical Committee 1 MPEG MPEG MPEG-H (ISO/IEC 23008) (part2)

2 ITU-T MPEG AV C WP3/16 VCEG(Video Coding Experts Group) 2004 AV C "Key Technical Areas" (KTA) MPEG 2008 (Exploration) HD 2009 4 MPEG AV C (Call for Evidence) KTA ITU-T VCEG UHDTV 2010 1 ITU-T WP3/16 MPEG JCT-VC JCT-VC HEVC (Call for Proposals) 4 1 JCT-VC UHDTV AV C 2 10 (Working Draft) 2012 1 (Committee Draft) 2013 1 12 (Final Draft International 4 Standard) HEVC 1 1 4:2:0/8 Main 10 Main 10 4:2:0/8 Main Still Picture 3 1 12 14 4:2:2 4:4:4 Range Extensions(RExt) 2014 1 1 2014 6 2.

3 2-1 HEVC MPEG-2 AV C 2-1 HEVC MPEG-2 AV C 3 5 2-1 HEVC - HEVC CTU(Coding Tree Unit) CTU MPEG-2 AV C (Macroblock) CTU ( ) ( 64x64 ) CTU CU(Coding Unit) CTU CU CU CU CU CU CU PU(Prediction Unit) TU(Transform Unit) 35 WPP CABAC 8 1/4 (SAO)

4 SAO + ++ 6 TU CTU CU CU CTU CU PU TU CTB(Coding Tree Block) CB(Coding Block) PB(Prediction Block) TB(Transform Block) 2-2 CTU CU PU TU (Unit) (Block) 2-2 HEVC - AV C PB 4x4 64x64 PB 35 5 DC CTU(Coding Tree Unit) CU 0CU 1CU 2CU 3CU CodingUnit TU 0 CU TU 1TU 2 Part_2Nx2N CU Part_2 NxNPart_Nx2 NPart_2 NxnU13 Part_2 NxnDPart_nLx2 NPart_nRx2 NPart_NxN00101012301010101TU TransformUnit PU Prediction Unit (Unit) (4 2 0 )

5 YUV 7 - CB 8x4 4 8 64x64 PB AV C PB 16 HDTV 4 4 AV C AV C 1/4 8 - MPEG-2 8 8 AV C 4 4 8 8 2 HEVC CB 4x4 32x32 TB 16x16 32x32 HEVC - HEVC CTU CABAC (Context-based Adaptive Binary Arithmetic Coding) CABAC AV C Main, High HEVC (Exponential Golomb Coding)

6 - AV C PU TU PU TU 8 AV C - 2 CTU 2-1 MPEG-2 Main AV C High HEVC Main 2-1 MPEG-2 Main AV C High HEVC Main 4 4 9 8 8 9 16 16 4 4 4 64x64 35 16 16 16 8 1/2 16 16 7 DPB 16 1/4 8x4/4x8 64x64 DPB 16 1/4 8 8 4 4 8 8 4 4 32x32 (CAVLC) (CABAC) (CABAC) (Decoded Picture Buffer) AV C HEVC - HEVC / 9 - HEVC / ( AV C ) 3.

7 (CVS) (AU)AUDVPSSPSPPSP-SEIEoB]EoSLPLPTPTPIRAP GOP SLICES-SEISLICES-SEI 3-1 HEVC 1 HEVC (Coded Video Sequence, CVS) End of sequence NAL unit (EoB) CVS Group of Pictures (GOP) 1 End of Sequence NAL unit (EoS) GOP IRAP (Intra Random Access Point) Access Unit (AU) LP (Leading Picture) AU TP (Trailing Picture) AU IRAP AU AU LP AU IRAP AU AU LP AU IRAP AU AU IRAP AU TP AU IRAP AU AU HEVC IRAP AU TP AU TP AU Intra AU IRAP AU 1 HEVC GOP GOP 10 AU Network Abstraction Layer Unit (NALU) AU 1 Slice Segment NALU 3-1 HEVC NALU AU Slice NALU (VCL NALU) AV C AU NALU 3-1 NALU (nal_unit_type) Reserved nal_unit_type TRAIL_N TRAIL_R VCL Trailing Picture (TP) Slice _N _R TSA_N TSA_R VCL Temporal Sub-layer Access (TSA) Slice TP AU 2 TP AU STSA_N STSA_R VCL Step-wise Temporal Sub-layer Access (STSA) Slice TSA AU 3-2 RADL_N RADL_R VCL Random Access Decodable Leading (RADL) Slice IRAP AU LP AU IRAP AU RASL_N RASL_R VCL Random Access Skipped Leading (RASL) Slice IRAP AU LP AU IRAP AU BLA_W_LP BLA_W_RADL BLA_N_LP VCL Broken Link Access (BLA)

8 Slice IRAP AU POC AU _W_LP RADL RASL LP _W_RADL RADL _N_LP LP IDR_W_RADL IDR_N_LP VCL Instantaneous Decoding Refresh (IDR) Slice IRAP AU POC 0 AU LP RASL CRA_NUT VCL Clean Random Access (CRA) Slice IRAP AU CRA AU CRA AU BLA AU VPS_NUT non-VCL Video Parameter Set (VPS) HEVC 11 nal_unit_type SPS_NUT non-VCL Sequence Parameter Set (SPS) AVC PPS_NUT non-VCL Picture Parameter Set (PPS) AVC AUD_NUT non-VCL Access Unit Delimiter (AUD) AVC AU EOS_NUT non-VCL End of Sequence (EoS) EOB_NUT non-VCL End of Bitstream (EoB) FD_NUT non-VCL Filler Data (FD) PREFIX_SEI_NUT SUFFIX_SEI_NUT non-VCL Supplemental Enhancement Information (SEI) AVC SEI AU VCL NALU Prefix SEI (P-SEI) VCL NALU Suffix SEI (S-SEI) SEI Slice 46 Temporal ID012523791181413151216 TSASTSA 2, 3, 5, 6, 7 9, 10, 11 10 14 13, 15 10 3-2 TSA AU, STSA AU AV C CTU 3-3 12 CTU (Coding tree unit)

9 3-3 AV C 2 CABAC 3-4 CTU AV C PPS CTU 13 CTU 3-4 WPP WPP (Wavefront parallel processing) CTU Wavefront CTU 2 CTU 3-5 CTU CTU CTUs 3-5 WPP CTU CABAC CTU CABAC 14 CTU CTU 2 CTU 3- 6 CTU CABAC 3-6 WPP CTU WPP 4.

10 MPEG-2 8 8 DCT Discrete Cosine Transform AV C 4 4 8 8 DCT HEVC DCT DST Discrete Sine Transform / / DST CU TB 4x4 TB 15 4-1 4x4 DST CU TB 4x4 4x4 TB DST 4x4TB DCT CG PC 4x4TB DCT HEVC DCT Chen 4-2 4-3 4x4 8x8 DCT 36838336646464648336368364646464 4-2 4x4 1850758936838336508918756464646489755018 3683833675188950646464647518895083363683 8975501864646464508918758336368318507589 64646464 4-3 8x8 2974845555742984740747484745529 16 8x8 0 2 4 6 4x4 16x16 32x32 AV C HEVC HEVC AV C 6 2 AV C DCT DST 5 bit /