ETSI TS 103 433-2016 High-Performance Single Layer Directly Standard Dynamic Range (SDR) Compatible High Dynamic Range (HDR) System for use in Consumer Electronics devices (SL-HDR1.pdf

1、 ETSI TS 103 433 V1.1.1 (2016-08) High-Performance Single Layer Directly Standard Dynamic Range (SDR) Compatible High Dynamic Range (HDR) System for use in Consumer Electronics devices (SL-HDR1) TECHNICAL SPECIFICATION ETSI ETSI TS 103 433 V1.1.1 (2016-08)2Reference DTS/JTC-036 Keywords broadcasting

2、, 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 Grasse (06) N 7803/88 Import

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9、3 V1.1.1 (2016-08)3Contents Intellectual Property Rights 7g3Foreword . 7g3Modal verbs terminology 7g3Introduction 7g31 Scope 9g32 References 9g32.1 Normative references . 9g32.2 Informative references 10g33 Definitions, symbols, abbreviations and conventions 10g33.1 Definitions 10g33.2 Symbols 10g33

10、.2.1 Arithmetic operators . 10g33.2.2 Bit-wise operators. 11g33.2.3 Mathematical functions . 11g33.3 Abbreviations . 12g33.4 Conventions 12g34 End-to-end system 12g35 HDR system architecture 13g36 Dynamic metadata format for SDR-to-HDR reconstruction 14g36.1 Introduction 14g36.2 Reconstruction metad

11、ata syntax . 14g36.2.1 Introduction. 14g36.2.2 HDR reconstruction information 14g36.2.3 Reconstructed HDR picture characteristics 15g36.2.4 SDR picture characteristics . 15g36.2.5 Luminance mapping variables 15g36.2.6 Colour correction adjustment variables 16g36.2.7 Luminance mapping table . 16g36.2

12、.8 Colour correction table . 16g36.3 Reconstruction metadata semantics 17g36.3.1 HDR reconstruction information 17g36.3.1.1 Introduction . 17g36.3.1.2 specVersion - Specification version 17g36.3.1.3 payloadMode - Payload mode . 17g36.3.1.4 chromaToLumaInjectionMuA 17g36.3.1.5 chromaToLumaInjectionMu

13、B . 17g36.3.2 Reconstructed HDR picture characteristics 18g36.3.2.1 Introduction . 18g36.3.2.2 hdrPicColourSpace 18g36.3.2.3 hdrMasterDisplayColourSpace . 18g36.3.2.4 hdrMasterDisplayMaxLuminance . 19g36.3.2.5 hdrMasterDisplayMinLuminance . 19g36.3.3 SDR picture characteristics . 19g36.3.3.1 Introdu

14、ction . 19g36.3.3.2 sdrPicColourSpace 19g36.3.3.3 sdrMasterDisplayColourSpace 20g36.3.4 Luminance mapping variables 21g36.3.4.1 Introduction . 21g36.3.4.2 tmInputSignalBlackLevelOffset - Tone Mapping Input Signal Black Level Offset . 21g36.3.4.3 tmInputSignalWhiteLevelOffset - Tone Mapping Input Sig

15、nal White Level Offset 21g36.3.4.4 shadowGain - Shadow Gain Control . 21g3ETSI ETSI TS 103 433 V1.1.1 (2016-08)46.3.4.5 highlightGain - Highlight Gain Control 21g36.3.4.6 midToneWidthAdjFactor - Mid-Tone Width Adjustment Factor . 21g36.3.4.7 tmOutputFineTuningNumVal - Number of Tone Mapping Output F

16、ine Tuning Function Curve Points . 21g36.3.4.8 tmOutputFineTuningX - Tone Mapping Output Fine Tuning Function x values . 21g36.3.4.9 tmOutputFineTuningY - Tone Mapping Output Fine Tuning Function y values . 22g36.3.5 Colour correction adjustment variables 22g36.3.5.1 Introduction . 22g36.3.5.2 satur

17、ationGainNumVal - Number of Saturation Gain Function Curve Points 22g36.3.5.3 saturationGainX - Saturation Gain Function x values . 22g36.3.5.4 saturationGainY - Saturation Gain Function y values . 22g36.3.6 Luminance mapping table . 23g36.3.6.1 Introduction . 23g36.3.6.2 luminanceMappingNumVal - Nu

18、mber of Luminance Mapping Curve Points 23g36.3.6.3 luminanceMappingX - Luminance Mapping x values 23g36.3.6.4 luminanceMappingY - Luminance Mapping y values 23g36.3.7 Colour correction table . 23g36.3.7.1 Introduction . 23g36.3.7.2 colourCorrectionNumVal - Number of Colour Correction Curve Points 23

19、g36.3.7.3 colourCorrectionX - Colour Correction x values 23g36.3.7.4 colourCorrectionY - Colour Correction y values 24g37 HDR signal reconstruction process 24g37.1 Input streams 24g37.2 Reconstruction process of the HDR stream 24g37.2.1 Introduction. 24g37.2.2 Selecting a reconstruction mode . 25g37

20、.2.3 Luminance mapping and colour correction tables construction 25g37.2.3.1 Luminance mapping table construction from variables (payloadMode 0) 25g37.2.3.1.1 Introduction . 25g37.2.3.1.2 Overview of the computation of lutMapY . 25g37.2.3.1.3 Block “To perceptual uniform signal“ . 26g37.2.3.1.4 Bloc

21、k “Adjustment curve“ . 27g37.2.3.1.5 Block “Inverse tone mapping curve“ . 27g37.2.3.1.6 Block “Black/white level adaptation“ 29g37.2.3.1.7 Block “Gain limiter“ 30g37.2.3.1.8 Block “To linear signal“ 30g37.2.3.1.9 Block “Sqrt“. 30g37.2.3.2 Colour correction table construction from parameter-based mod

22、e (payloadMode 0) . 31g37.2.3.3 Luminance mapping table retrieval (payloadMode 1) 32g37.2.3.4 Colour correction table retrieval (payloadMode 1) . 32g37.2.4 HDR picture reconstruction from look-up tables and SDR picture 33g37.3 Piecewise linear function computation . 35g3Annex A (normative): SDR-to-H

23、DR reconstruction metadata mapping from HEVC specification 36g3A.1 Introduction 36g3A.2 Specification version and payload mode mapping . 36g3A.2.1 Introduction 36g3A.2.2 ETSI TS 103 433 information SEI message syntax . 36g3A.2.3 ETSI TS 103 433 information SEI message semantics 37g3A.2.4 ETSI TS 103

24、 433 information SEI message wrapping in HEVC user data registered SEI message 37g3A.3 Characteristics mapping . 37g3A.3.1 Introduction 37g3A.3.2 Reconstructed HDR picture characteristics mapping . 37g3A.3.2.1 Introduction. 37g3A.3.2.2 hdrPicColourSpace mapping 37g3A.3.2.3 hdrMasterDisplayColourSpac

25、e mapping 38g3A.3.2.4 hdrMasterDisplayMaxLuminance mapping . 39g3A.3.2.5 hdrMasterDisplayMinLuminance mapping 39g3ETSI ETSI TS 103 433 V1.1.1 (2016-08)5A.3.3 SDR picture characteristics mapping . 39g3A.4 Mapping to parameter-based mode variables (payloadMode 0) 39g3A.4.1 Introduction 39g3A.4.2 HEVC

26、colour volume reconstruction information SEI message 40g3A.4.2.1 Colour volume reconstruction information SEI message syntax 40g3A.4.2.2 Colour volume reconstruction information SEI message semantics . 40g3A.4.2.3 Colour volume reconstruction information SEI message wrapping in HEVC user data regist

27、ered SEI message . 42g3A.4.3 Luminance mapping and colour correction adjustment variables mapping . 42g3A.5 Mapping to table-based mode variables (payloadMode 1) 43g3A.5.1 Introduction 43g3A.5.2 Luminance mapping and colour correction tables variables mapping 43g3Annex B (normative): SDR-to-HDR reco

28、nstruction metadata mapping from AVC specification 45g3B.1 Introduction 45g3B.2 Specification version and payload mode mapping . 45g3B.2.1 Introduction 45g3B.2.2 ETSI TS 103 433 information SEI message syntax . 45g3B.2.3 ETSI TS 103 433 information SEI message semantics 46g3B.2.4 ETSI TS 103 433 inf

29、ormation SEI message wrapping in AVC user data registered SEI message 46g3B.3 Characteristics mapping . 46g3B.3.1 Introduction 46g3B.3.2 Reconstructed HDR picture characteristics mapping . 46g3B.3.2.1 Introduction. 46g3B.3.2.2 hdrPicColourSpace mapping 46g3B.3.2.3 hdrMasterDisplayColourSpace mapping

30、 47g3B.3.2.4 hdrMasterDisplayMaxLuminance mapping . 47g3B.3.2.5 hdrMasterDisplayMinLuminance mapping 48g3B.3.3 SDR picture characteristics mapping . 48g3B.4 Mapping to parameter-based mode variables (payloadMode 0) 48g3B.4.1 Introduction 48g3B.4.2 AVC colour volume reconstruction information SEI mes

31、sage. 48g3B.4.2.1 Colour volume reconstruction information SEI message syntax 48g3B.4.2.2 Colour volume reconstruction information SEI message semantics . 49g3B.4.2.3 Colour volume reconstruction information SEI message wrapping in AVC user data registered SEI message . 51g3B.4.3 HDR picture charact

32、eristics and model parameters mapping . 52g3B.5 Mapping to table-based mode variables (payloadMode 1) 52g3B.5.1 Introduction 52g3B.5.2 AVC colour remapping information SEI message . 52g3B.5.2.1 Colour remapping information SEI syntax . 52g3B.5.2.2 Colour remapping information SEI semantics 53g3B.5.2

33、.3 Colour remapping information SEI message wrapping in AVC user data unregistered SEI message . 56g3B.5.3 Luminance mapping and colour correction tables variables mapping 57g3Annex C (informative): HDR-to-SDR decomposition principle . 58g3C.1 Introduction 58g3C.1.1 Process overview 58g3C.1.2 Theore

34、tical decomposition process 58g3C.1.3 Reference implementation 59g3C.2 Mapping and colour functions derivation. 60g3C.2.1 Introduction 60g3C.2.2 Computation of the function g1838g1847g1846g1846g16(g1838) (payloadMode 0) 60g3C.2.2.1 Overview of the computation of g15g24g23g23g16(g1838) . 60g3C.2.2.2

35、Block “To perceptual uniform signal“ 61g3ETSI ETSI TS 103 433 V1.1.1 (2016-08)6C.2.2.3 Block “Black/white level adaptation“ . 62g3C.2.2.4 Block “Tone mapping curve“ 63g3C.2.2.5 Block “Adjustment curve“ 64g3C.2.2.6 Block “Gain limiter“ . 65g3C.2.2.7 Block “To linear signal“ 65g3C.2.2.8 Final output .

36、 66g3C.2.3 Computation of the colour correction function 66g3C.2.3.1 Introduction. 66g3C.2.3.2 Examplary process for the computation of the colour correction function . 66g3C.2.3.3 Derivation of the HDR-versus-SDR perceived colour error . 67g3C.3 Automatic parameter generation during encoding . 68g3

37、C.3.1 Introduction 68g3C.3.2 Automatic tone mapping parameter generation from only an HDR picture . 69g3C.3.2.1 Introduction. 69g3C.3.2.2 Calculation of tmInputSignalBlackLevelOffset, tmInputSignalWhiteLevelOffset 69g3C.3.2.3 Calculation of shadowGain . 70g3C.3.2.4 The parameters highlightGain and m

38、idToneWidthAdjFactor 70g3C.3.3 Temporal filtering of tone mapping parameters . 71g3C.3.4 Simplified process for colour correction function generation 74g3C.3.4.1 Introduction. 74g3C.3.4.2 Simplified colour correction derivation process . 74g3C.3.4.3 Selection of the colour correction LUT 75g3Annex D

39、 (informative): CE-friendly inverse gamut mapping 77g3Annex E (informative): Display adaptation . 79g3E.1 Introduction 79g3E.2 Display adaptation maintaining creative intent 79g3E.3 Display adaptation and HDMI . 82g3Annex F (informative): Change History 83g3History 84g3ETSI ETSI TS 103 433 V1.1.1 (2

40、016-08)7Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual

41、Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR

42、 searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been p

43、roduced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to co-ordinate the draftin

44、g of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC, which is responsible for the standardization of radio and television receivers. The EBU is a professional assoc

45、iation of broadcasting organizations whose work includes the co-ordination of its members activities in the technical, legal, programme-making and programme-exchange domains. The EBU has active members in about 60 countries in the European broadcasting area; its headquarters is in Geneva. European B

46、roadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clau

47、se 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. Introduction Motivation Today High Efficiency Video Coding (HEVC) enables first Ultra HD broadcast services (also referre

48、d as “4K“ resolution) via existing DVB specifications. Recently some High Dynamic Range (HDR) standards have been released by SMPTE (SMPTE ST 2084 1 and SMPTE ST 2086 2). However, they define an HDR video signal that is not directly compatible with Standard Dynamic Range (SDR) Consumer Electronics (

49、CE) devices. Thus, these devices require upstream external processing adapting the HDR video signal to a supported video format in order to render the video signal. Additionally, existing production and distribution infrastructures as well as play out may not be compatible with the SMPTE HDR standards with respect to carriage and signalling of the metadata in these standards. The HDR system specified in the present document addresses direct backwards compatibility i.e. it leverages SDR distribution networks and services already in place and that enables high quality H