GB/T 41809-2022 English PDF

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GB/T 41809-2022: Parameter values for ultra-high definition television systems for production and programme exchange
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Basic data

Standard ID: GB/T 41809-2022 (GB/T41809-2022)
Description (Translated English): Parameter values for ultra-high definition television systems for production and programme exchange
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M61
Classification of International Standard: 33.160
Word Count Estimation: 10,184
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 41809-2022: Parameter values for ultra-high definition television systems for production and programme exchange

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Parameter values for ultra-high definition television systems for production and programme exchange ICS 33.160 CCSM61 National Standards of People's Republic of China Ultra-high-definition television system programming and Swap parameter values 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 Basic Parameters of UHD TV Program Production 1 4.1 Image Spatial Characteristics 1 4.2 Image Temporal Characteristics 2 4.3 Color System 2 4.4 Signal Format 2 4.5 Numerical Expression 4 Appendix A (informative) Comparison of structure numbering between this document and ITU-RBT.2020-2.20155 Reference 6

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 is modified and adopted ITU-RBT.2020-2.2015 "Parameter Values for Program Production and International Exchange in Ultra High Definition Television Systems". arts The file type is adjusted to the national standard of our country by the ITU recommendation. Compared with ITU-RBT.2020-2.2015, 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.2020-2.2015 and their reasons are as follows. --- Added the terms and definitions of "Ultra High Definition Television" (see 3.1); --- Deleted the 30Hz, 30/1.001Hz, 25Hz, 24Hz, 24/1.001Hz frame rates in ITU-RBT.2020-2.2015 to Adapt to my country's TV system and application needs (see Table 2 of ITU-RBT.2020-2.2015); ---In front of Table 1 to Table 5, the requirement-type clauses that meet the corresponding table are added. 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 "Ultra-high-definition television system program production and exchange parameter values"; --- Deleted the "scope" and "keywords" of ITU-RBT.2020-2.2015; --- 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, Radio and Television Planning Institute of the State Administration of Radio and Television, China Film and Television Technology Society, Hunan Radio and Television Station, the Fifth Electronic Research Institute of the Ministry of Industry and Information Technology. The main drafters of this document. Cui Jianwei, Deng Xiangdong, Wang Rui, Yuan Xuzhi, Wang Pei, Zhou Lihong, Chen Hong, Ma Yue, Liu Xin, Zhang Qian, Shi Haijing, Wang Huiming, Luo Xinyan, Sun Yan, Lu Xiaoli, Ning Jinhui, Dan Jing, Wang Jun, Wei Shengyu. Ultra-high-definition television system programming and Swap parameter values

1 Scope

This document specifies the basic parameter values involved in the production and exchange of programs in Ultra High Definition Television (UHDTV) systems. This document is applicable to the production and exchange of UHDTV programs, as well as the design, production and production of UHDTV 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. ITU-RBT.1886 Reference electro-optical transfer function for flat panel display devices for high-definition television studio program production (Reference ITU-RBT.2035 Reference viewing environment for evaluation of high-definition television program material or finished program

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Ultra HD TV with 7680×4320 or 3840×2160 image format.

4 Basic parameters of UHD TV program production

4.1 Image space characteristics The image space characteristics should meet the requirements of Table 1. Table 1 Image space characteristics Serial number parameter value 1 aspect ratio 16.9 2 Effective number of pixels (horizontal×vertical) 7680×4320 3840×2160

3 The sampling structure is orthogonal

4 pixel aspect ratio 1.1 (square) 5 Pixels arranged left-to-right, top-to-bottom ......

Image     

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