用于计算具有恒定空间变化、恒定时间偏移和恒定亮度增益补偿和偏移的处理后视频序列的峰值信噪比的参考算法 |
峰值信噪比(PSNR)是一个适合于评估新的客观感知视频质量度量的性能提升的有用基准,ITU-T J.340建议书中的这个PSNR计算方法对于在空间和时间偏移范围内的给定视频序列,具有自动确定最高可能的PSNR数值的优点,整个经过处理视频序列中的所有帧只容许一个时间偏移(即固定时延)。该建议书定义了一个适合于计算经过处理的视频序列的校准和PSNR估值的完全参考(FR)算法:采取了固定空间偏移、固定时间偏移以及固定亮度增益和偏移补偿的峰值信噪比(PSNRconst),由于PSNRconst算法只检查了CB中Y亮度通道(根据ITU-R BT.601-6建议书的定义)失真,CR色度通道不会被该建议书的算法检测到,该建议书的目的是定义一个标准化的PSNR度量,并促使其为工业和标准组织所采用,参考代码和测试向量已经包含在内以确保实现该PSNRconst度量的准确性和一致性。 |
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Citation: |
https://handle.itu.int/11.1002/1000/10551 |
Series title: |
J series: Cable networks and transmission of television, sound programme and other multimedia signals J.340-J.349: Measurement of the quality of service - Part 3 |
Approval date: |
2010-06-29 |
Provisional name: | J.ra-psnr |
Approval process: | AAP |
Status: |
In force |
Maintenance responsibility: |
ITU-T Study Group 12 |
Further details: |
Patent statement(s)
Development history
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Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
1
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J.340 (06/2010)
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In force
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here
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here
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here
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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J Suppl. 1 (11/1998)
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Example of linking options between annexes of ITU-T Recommendation J.112 and annexes of ITU-T Recommendation J.83
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In force
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-
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here
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here
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J Suppl. 2 (11/1998)
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Guidelines for the implementation of annex A of Recommendation J.112, "Transmission systems for interactive cable television services" – Example of digital video broadcasting (DVB) interaction channel for cable television distribution
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In force
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-
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here
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here
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J Suppl. 3 (11/1998)
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Guidelines for the implementation of Recommendation J.111 "Network independent protocols" – Example of digital video broadcasting (DVB) systems for interactive services
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In force
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-
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here
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here
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J Suppl. 5 (09/1999)
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Guidelines on the use of some ITU-T Recommendations in the J series
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In force
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here
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here
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here
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J Suppl. 6 (09/2016)
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Ultra high definition television cable transmission with functions defined in Recommendations ITU-T J.183, ITU-T J.288 and ITU-T J.94
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In force
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here
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here
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here
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J Suppl. 7 (04/2021)
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Embedded common interface (ECI) for exchangeable CA/DRM solutions; Guidelines for the implementation of ECI
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In force
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here
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here
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here
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J Suppl. 8 (04/2021)
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Embedded common interface (ECI) for exchangeable CA/DRM solutions; Trust environment
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In force
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here
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here
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here
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J Suppl. 9 (04/2020)
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Embedded common interface for exchangeable CA/DRM solutions; System validation
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In force
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here
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here
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here
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J Suppl. 10 (09/2024)
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Correspondence between CableLabs DOCSIS Specifications and ITU-T J-series Recommendations
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In force
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here
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here
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here
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J Suppl. 11 (04/2021)
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Guidelines for installing a digital television service for cable networks based on ITU-T Recommendations
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In force
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here
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here
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here
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J Suppl. 14 (01/2025)
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Use cases of microservices architecture for audiovisual media in the converged media cloud
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In force
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here
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here
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here
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Click
here
to download all the modules of this Recommendation (zipped archive)
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Click here to download all the modules needed to compile this Recommendation (zipped archive)
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Title |
Approved on |
Download |
Optimizing bit rates and transmission resolution by considering display characteristics and available bandwidth
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2023
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here
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