GB/T 41808-2022 English PDF

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GB/T 41808-2022: Image parameter values for high dynamic range television for use in production and programme exchange
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Basic data

Standard ID: GB/T 41808-2022 (GB/T41808-2022)
Description (Translated English): Image parameter values for high dynamic range television for use in production and programme exchange
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M70
Classification of International Standard: 33.160.40
Word Count Estimation: 18,150
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41808-2022: Image parameter values for high dynamic range television for use in production and programme exchange

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Image parameter values for high dynamic range television for use in production and programme exchange ICS 33.160.40 CCSM70 National Standards of People's Republic of China High dynamic range TV production and exchange Image parameter value Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 1 5 Image parameter value 1 5.1 Image Spatial and Temporal Properties 1 5.2 System Color System 2 5.3 High dynamic range program and material reference viewing environment 2 5.4 PQ and HLG Systems Reference Nonlinear Transfer Functions 3 5.5 Signal Format 7 5.6 Chroma Subsampling 7 5.7 10bit and 12bit digital integer representation 8 5.8 16bit floating point signal representation 9 Appendix A (informative) Comparison of structure numbering between this document and ITU-RBT.2100-2.201810 Appendix B (Informative) Relationship between OETF, EOTF and OOTF 11 Appendix C (Informative) Parametric Representation of EOTF and OETF 13 Reference 14

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document modifies the use of ITU-RBT.2100-2.2018 "Picture parameters for high dynamic range television for production and international programme exchange" value". The file type is adjusted by the ITU recommendation to the national standard of our country. Compared with ITU-RBT.2100-2.2018, this document has more structural adjustments. Struct number change pair between two files See Appendix A for the list. The technical differences between this document and ITU-RBT.2100-2.2018 and their reasons are as follows. --- Deleted 30Hz, 30/1.001Hz, 25Hz, 24Hz and 24/1.001Hz frame rates in ITU-RBT.2100-2.2018, To adapt to my country's TV system and application needs (see Table 1 of ITU-RBT.2100-2.2018); --- Replaced the normative reference document ITU-RBT.814 (see Table 3) with GY/T 326-2019, which was modified to adopt international standards; --- Table 1~Table 3, Table 6~Table 9 have added the requirement type clauses that meet the corresponding table; ---The references in Table 4, Table 5, and Table 10 are modified to requirement-type clauses. The following editorial changes have been made to this document. --- In order to be consistent with my country's technical standard system, the standard name is changed to "High Dynamic Range TV Program Production and Exchange Image Parameter Values"; --- Deleted the "scope" and "keywords" of ITU-RBT.2100-2.2018; --- Added a note for the description of "CIE1931XYZ color space" in Table 2; --- Added references. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the State Administration of Radio and Television. This document is under the jurisdiction of the National Radio, Film and Television Standardization Technical Committee (SAC/TC239). This document is drafted by. China Central Radio and Television Station, State Administration of Radio and Television Academy of Radio and Television, State Administration of Radio and Television Radio and Television Planning Institute. The main drafters of this document. Pan Xiaofei, Guo Xiaoqiang, Dong Wenhui, Cui Jianwei, Zhou Yun, Ning Jinhui, Wang Pei, Wei Na, Wang Huiming, Wang Zhenzhong, Deng Xiangdong, Wang Qiang, Liu Xin, Wang Jingsheng, Zhang Qian, Hu Xiao, Jia Tao. High dynamic range TV production and exchange Image parameter value

1 Scope

This document specifies the basic picture parameter values and reference viewing environments involved in the production and exchange of high dynamic range television programmes. This document is applicable to high dynamic range television program production and program exchange, as well as the design, production, and production of high dynamic range television systems and equipment. production, acceptance, operation and maintenance.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GY/T 326-2019 PLUGE test signal specification and calibration procedure for monitor brightness and contrast calibration (ITU-RBT. 814-4.2018, MOD) ISO 11664-2.2007 Chromaticity Part 2.CIE standard illuminance (Colorimetry-Part 2.CIEstandardilumi-

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Abbreviations

The following abbreviations apply to this document. HLG. HybridLog-Gamma

5 Image parameter values

5.1 Image Spatial and Temporal Characteristics The spatial and temporal characteristics of the image shall comply with the provisions of Table 1. ......

Image     

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