ETSI TS 103 433-1-2017 High-Performance Single Layer High Dynamic Range (HDR) System for use in Consumer Electronics devices Part 1 Directly Standard Dynamic Range (SDR) Compatible_1.pdf

1、 ETSI TS 103 433-1 V1.2.1 (2017-08) High-Performance Single Layer High Dynamic Range (HDR) System for use in Consumer Electronics devices; Part 1: Directly Standard Dynamic Range (SDR) Compatible HDR System (SL-HDR1) TECHNICAL SPECIFICATION ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)2 Reference RTS/JTC-

2、040-1 Keywords broadcasting, content, digital, distribution, HDR, HDTV, UHDTV, video ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de G

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9、e GSM Association. ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)3 Contents Intellectual Property Rights 9g3Foreword . 9g3Modal verbs terminology 9g3Introduction 10g31 Scope 12g32 References 12g32.1 Normative references . 12g32.2 Informative references 13g33 Definitions, symbols, abbreviations and conventi

10、ons 13g33.1 Definitions 13g33.2 Symbols 15g33.2.1 Arithmetic operators . 15g33.2.2 Mathematical functions . 15g33.2.3 Logical operators 16g33.3 Abbreviations . 16g33.4 Conventions 16g34 End-to-end system 17g35 HDR system architecture 18g36 Dynamic metadata format for signal reconstruction 18g36.1 In

11、troduction 18g36.2 Reconstruction metadata syntax . 19g36.2.1 Introduction. 19g36.2.2 Signal reconstruction information . 19g36.2.3 HDR picture characteristics 19g36.2.4 SDR picture characteristics . 20g36.2.5 Luminance mapping variables 20g36.2.6 Colour correction adjustment variables 20g36.2.7 Lum

12、inance mapping table . 21g36.2.8 Colour correction table . 21g36.2.9 Gamut mapping variables . 21g36.3 Reconstruction metadata semantics 22g36.3.1 Introduction. 22g36.3.2 Signal reconstruction information . 23g36.3.2.1 Introduction . 23g36.3.2.2 partID - part indicator of the multi-part document 23g

13、36.3.2.3 majorSpecVersionID - Major specification version indicator . 23g36.3.2.4 minorSpecVersionID - Minor specification version indicator 23g36.3.2.5 payloadMode - Payload carriage mode . 23g36.3.2.6 matrixCoefficient - YCC-to-RGB conversion matrix coefficients . 23g36.3.2.7 chromaToLumaInjection

14、 - Chroma to luma injection . 24g36.3.2.8 kCoefficient . 24g36.3.2.9 gamutMappingMode . 24g36.3.3 HDR picture characteristics 25g36.3.3.1 Introduction . 25g36.3.3.2 hdrPicColourSpace - HDR picture colour space . 25g36.3.3.3 hdrDisplayColourSpace - Colour space of the mastering display used to master

15、 the HDR picture 26g36.3.3.4 hdrDisplayMaxLuminance - HDR mastering display maximum luminance 26g36.3.3.5 hdrDisplayMinLuminance - HDR mastering display minimum luminance 26g36.3.4 SDR picture characteristics . 26g36.3.4.1 Introduction . 26g36.3.4.2 sdrPicColourSpace - SDR picture colour space 26g36

16、.3.4.3 sdrDisplayMaxLuminance - SDR mastering display maximum luminance . 27g3ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)4 6.3.4.4 sdrDisplayMinLuminance - SDR mastering display minimum luminance . 27g36.3.5 Luminance mapping variables 27g36.3.5.1 Introduction . 27g36.3.5.2 tmInputSignalBlackLevelOffset

17、 - Tone Mapping Input Signal Black Level Offset . 27g36.3.5.3 tmInputSignalWhiteLevelOffset - Tone Mapping Input Signal White Level Offset 27g36.3.5.4 shadowGain - Shadow Gain Control . 28g36.3.5.5 highlightGain - Highlight Gain Control 28g36.3.5.6 midToneWidthAdjFactor - Mid-Tone Width Adjustment F

18、actor . 28g36.3.5.7 tmOutputFineTuningNumVal - Number of Tone Mapping Output Fine Tuning Function Curve Points . 28g36.3.5.8 tmOutputFineTuningX - Tone Mapping Output Fine Tuning Function x values . 28g36.3.5.9 tmOutputFineTuningY - Tone Mapping Output Fine Tuning Function y values . 28g36.3.6 Colou

19、r correction adjustment variables 29g36.3.6.1 Introduction . 29g36.3.6.2 saturationGainNumVal - Number of Saturation Gain Function Curve Points 29g36.3.6.3 saturationGainX - Saturation Gain Function x values . 29g36.3.6.4 saturationGainY - Saturation Gain Function y values . 29g36.3.7 Luminance mapp

20、ing table . 29g36.3.7.1 Introduction . 29g36.3.7.2 luminanceMappingNumVal - Number of Luminance Mapping Curve Points 29g36.3.7.3 luminanceMappingX - Luminance Mapping x values 29g36.3.7.4 luminanceMappingY - Luminance Mapping y values 30g36.3.8 Colour correction table . 30g36.3.8.1 Introduction . 30

21、g36.3.8.2 colourCorrectionNumVal - Number of Colour Correction Curve Points 30g36.3.8.3 colourCorrectionX - Colour Correction x values 30g36.3.8.4 colourCorrectionY - Colour Correction y values 30g36.3.9 Gamut mapping variables . 30g36.3.9.1 Introduction . 30g36.3.9.2 satMappingMode - Saturation map

22、ping mode 31g36.3.9.3 satGlobal1SegRatio . 31g36.3.9.4 satGlobal2SegRatioWCG . 31g36.3.9.5 satGlobal2SegRatioSCG . 31g36.3.9.6 sat1SegRatio 31g36.3.9.7 sat2SegRatioWCG 31g36.3.9.8 sat2SegRatioSCG 31g36.3.9.9 lightnessMappingMode . 32g36.3.9.10 lmWeightFactor 32g36.3.9.11 croppingModeSCG . 32g36.3.9.

23、12 cmWeightFactor 32g36.3.9.13 cmCroppedLightnessMappingEnabledFlag 32g36.3.9.14 hueAdjMode 33g36.3.9.15 hueGlobalPreservationRatio 33g36.3.9.16 huePreservationRatio 33g36.3.9.17 hueAlignCorrectionPresentFlag 33g36.3.9.18 hueAlignCorrection . 33g36.3.9.19 chromAdjPresentFlag 33g36.3.9.20 chromAdjPar

24、am 33g37 HDR signal reconstruction process 34g37.1 Input streams 34g37.2 Reconstruction process of the HDR stream 34g37.2.1 Introduction. 34g37.2.2 Selecting a reconstruction mode . 35g37.2.3 Luminance mapping and colour correction tables construction 35g37.2.3.1 Luminance mapping table construction

25、 from variables (payloadMode 0) 35g37.2.3.1.1 Introduction . 35g37.2.3.1.2 Overview of the computation of lutMapY . 35g37.2.3.1.3 Block “To perceptual uniform signal“ . 36g37.2.3.1.4 Block “Adjustment curve“ . 37g37.2.3.1.5 Block “Inverse tone mapping curve“ . 37g37.2.3.1.6 Block “Black/white level

26、adaptation“ 39g3ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)5 7.2.3.1.7 Block “Gain limiter“ 40g37.2.3.1.8 Block “To linear signal“ 40g37.2.3.1.9 Block “Inverse EOTF“ . 40g37.2.3.2 Colour correction table construction from parameter-based mode (payloadMode 0) . 41g37.2.3.3 Luminance mapping table retriev

27、al (payloadMode 1) 42g37.2.3.4 Colour correction table retrieval (payloadMode 1) . 42g37.2.4 HDR picture reconstruction from look-up tables and SDR picture 42g37.3 Piecewise linear function computation . 44g3Annex A (normative): SL-HDR reconstruction metadata using HEVC . 45g3A.1 Introduction 45g3A.

28、2 SL-HDR SEI message definition and mapping 45g3A.2.1 Introduction 45g3A.2.2 SL-HDR information SEI message 45g3A.2.2.1 Introduction. 45g3A.2.2.2 SL-HDR information SEI message syntax . 45g3A.2.2.3 Gamut mapping syntax . 47g3A.2.2.4 SL-HDR SEI message semantics 48g3A.2.2.5 Gamut mapping semantics 52

29、g3A.2.3 SL-HDR metadata mapping . 54g3A.2.3.1 Introduction. 54g3A.2.3.2 Signal reconstruction information . 54g3A.2.3.2.1 Introduction . 54g3A.2.3.2.2 partID mapping . 54g3A.2.3.2.3 majorSpecVersionID mapping 54g3A.2.3.2.4 minorSpecVersionID mapping 54g3A.2.3.2.5 payloadMode mapping 54g3A.2.3.2.6 ma

30、trixCoefficient mapping . 54g3A.2.3.2.7 chromaToLumaInjection mapping 54g3A.2.3.2.8 kCoefficient mapping 54g3A.2.3.2.9 gamutMappingMode mapping 54g3A.2.3.3 HDR picture characteristics 55g3A.2.3.3.1 Introduction . 55g3A.2.3.3.2 hdrPicColourSpace mapping . 55g3A.2.3.3.3 hdrDisplayColourSpace mapping .

31、 55g3A.2.3.3.4 hdrDisplayMaxLuminance mapping . 56g3A.2.3.3.5 hdrDisplayMinLuminance mapping . 56g3A.2.3.4 SDR picture characteristics . 57g3A.2.3.4.1 Introduction . 57g3A.2.3.4.2 sdrPicColourSpace mapping . 57g3A.2.3.4.3 sdrDisplayMaxLuminance mapping . 57g3A.2.3.4.4 sdrDisplayMinLuminance mapping

32、57g3A.2.3.5 Luminance mapping variables 57g3A.2.3.5.1 Introduction . 57g3A.2.3.5.2 tmInputSignalBlackLevelOffset mapping . 57g3A.2.3.5.3 tmInputSignalWhiteLevelOffset mapping 57g3A.2.3.5.4 shadowGain mapping 57g3A.2.3.5.5 highlightGain mapping 58g3A.2.3.5.6 midToneWidthAdjFactor mapping . 58g3A.2.3.

33、5.7 tmOutputFineTuningNumVal mapping 58g3A.2.3.5.8 tmOutputFineTuningX mapping . 58g3A.2.3.5.9 tmOutputFineTuningY mapping . 58g3A.2.3.6 Colour correction adjustment variables 58g3A.2.3.6.1 Introduction . 58g3A.2.3.6.2 saturationGainNumVal mapping . 58g3A.2.3.6.3 saturationGainX mapping . 58g3A.2.3.

34、6.4 saturationGainY mapping . 58g3A.2.3.7 Luminance mapping table . 58g3A.2.3.7.1 Introduction . 58g3A.2.3.7.2 luminanceMappingNumVal mapping . 58g3A.2.3.7.3 luminanceMappingX mapping 59g3ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)6 A.2.3.7.4 luminanceMappingY mapping 59g3A.2.3.8 Colour correction table

35、 . 59g3A.2.3.8.1 Introduction . 59g3A.2.3.8.2 colourCorrectionNumVal mapping . 59g3A.2.3.8.3 colourCorrectionX mapping 59g3A.2.3.8.4 colourCorrectionY mapping 59g3A.2.3.9 Gamut mapping variables . 59g3A.2.3.9.1 Introduction . 59g3A.2.3.9.2 satMappingMode mapping 60g3A.2.3.9.3 satGlobal1SegRatio mapp

36、ing 60g3A.2.3.9.4 satGlobal2SegRatioWCG mapping . 60g3A.2.3.9.5 satGlobal2SegRatioSCG mapping 60g3A.2.3.9.6 sat1SegRatio mapping . 60g3A.2.3.9.7 sat2SegRatioWCG mapping . 60g3A.2.3.9.8 sat2SegRatioSCG mapping . 60g3A.2.3.9.9 lightnessMappingMode mapping 60g3A.2.3.9.10 lmWeightFactor mapping 60g3A.2.

37、3.9.11 croppingModeSCG mapping. 60g3A.2.3.9.12 cmWeightFactor mapping . 60g3A.2.3.9.13 cmCroppedLightnessMappingEnabledFlag mapping . 60g3A.2.3.9.14 hueAdjMode mapping . 61g3A.2.3.9.15 hueGlobalPreservationRatio mapping . 61g3A.2.3.9.16 huePreservationRatio mapping . 61g3A.2.3.9.17 hueAlignCorrectio

38、nPresentFlag mapping . 61g3A.2.3.9.18 hueAlignCorrection mapping 61g3A.2.3.9.19 chromAdjPresentFlag mapping . 61g3A.2.3.9.20 chromAdjParam mapping . 61g3A.3 Mastering Display Colour Volume SEI message mapping 61g3A.3.1 Introduction 61g3A.3.2 HDR picture characteristics 62g3Annex B (normative): SL-HD

39、R reconstruction metadata using AVC 63g3Annex C (informative): HDR-to-SDR decomposition principle . 64g3C.1 Introduction 64g3C.1.1 Process overview 64g3C.1.2 Theoretical decomposition process 64g3C.1.3 Reference implementation 65g3C.2 Mapping and colour functions derivation. 66g3C.2.1 Introduction 6

40、6g3C.2.2 Computation of the function g1838g1847g1846g1846g16(g1838) (payloadMode 0) 66g3C.2.2.1 Overview of the computation of g15g24g23g23g16(g1838) . 66g3C.2.2.2 Block “To perceptual uniform signal“ 67g3C.2.2.3 Block “Black/white level adaptation“ . 68g3C.2.2.4 Block “Tone mapping curve“ 69g3C.2.2

41、.5 Block “Adjustment curve“ 70g3C.2.2.6 Block “Gain limiter“ . 71g3C.2.2.7 Block “To linear signal“ 71g3C.2.2.8 Final output . 72g3C.2.3 Computation of the colour correction function 72g3C.3 Automatic parameter generation during encoding . 73g3C.3.1 Introduction 73g3C.3.2 Automatic tone mapping para

42、meter generation from only an HDR picture . 73g3C.3.2.1 Introduction. 73g3C.3.2.2 Calculation of tmInputSignalBlackLevelOffset, tmInputSignalWhiteLevelOffset 73g3C.3.2.3 Calculation of shadowGain . 74g3C.3.2.4 The parameters highlightGain and midToneWidthAdjFactor 75g3C.3.3 Temporal filtering of ton

43、e mapping parameters . 75g3C.3.4 Simplified process for colour correction function generation 78g3ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)7 C.3.4.1 Introduction. 78g3C.3.4.2 Simplified colour correction derivation process . 78g3C.3.4.3 Selection of the colour correction LUT 79g3Annex D (informative):

44、 Invertible gamut mapping . 81g3D.1 Introduction 81g3D.2 Notations and definitions 82g3D.2.1 Introduction 82g3D.2.2 Notations 82g3D.2.3 Definitions 83g3D.2.3.1 Introduction. 83g3D.2.3.2 Line defined by two points . 83g3D.2.3.3 Intersections 83g3D.2.3.4 Cusp 84g3D.2.3.5 Sector 85g3D.2.3.6 Computing t

45、he cusp colour using a sector 87g3D.2.3.7 Boundary 87g3D.3 Forward gamut mapping process . 89g3D.3.1 Introduction 89g3D.3.2 Video content adaptation 90g3D.3.3 Hue mapping 91g3D.3.3.1 Introduction. 91g3D.3.3.2 Deriving the rotated gamut . 92g3D.3.3.3 Hue mapping without preserved area 92g3D.3.3.4 Der

46、iving the preserved gamut . 94g3D.3.3.5 Hue mapping with preserved area . 94g3D.3.4 Lightness mapping . 97g3D.3.4.1 Introduction. 97g3D.3.4.2 Deriving the lightness cropped gamut 97g3D.3.4.3 Deriving the lightness mapping weighting factors 98g3D.3.4.4 Parabolic lightness mapping . 98g3D.3.5 Chromina

47、nce mapping . 100g3D.3.5.1 Introduction. 100g3D.3.5.2 Computing the boundary of a warped gamut 100g3D.3.5.3 Deriving the compression parameters from the metadata . 101g3D.3.5.4 Compressing the chrominance 102g3D.3.6 Interfacing with SL-HDR1 decomposition . 103g3D.4 Inverse gamut mapping process . 10

48、3g3D.4.1 Introduction 103g3D.4.2 Interfacing with SL-HDR1 reconstruction . 104g3D.4.3 Chrominance remapping 105g3D.4.4 Lightness remapping 106g3D.4.5 Hue remapping . 107g3D.4.5.1 Introduction. 107g3D.4.5.2 Hue remapping without preserved area 108g3D.4.5.3 Hue remapping with preserved area 109g3D.4.6

49、 Adaptation to output format . 112g3Annex E (informative): HDR-to-HDR display adaptation . 113g3E.1 Introduction 113g3E.2 Display adaptation maintaining creative intent 113g3E.3 Display adaptation and HDMI . 117g3Annex F (informative): Error-concealment: recovery in post-processor from metadata loss or corruption . 118g3F.1 Introduction 118g3ETSI ETSI TS 103 433-1 V1.2.1 (2017-08)8 F.2 Metadata values for recovery mode . 118g3F.3 Recovery of shadow_gain_control with MDCV SEI message 119g3F.4 Recovery of shadow_gain_control without MDCV SEI message . 119g3Annex G (informat