GB/T 31001-2014 in English
VALIDTest materials to be used in subjective assessment for high definition television
- Issued on:2014-09-03
- Implemented on:2015-02-01
- File Format:PDF
- Delivery:Via email within 5 business days
$398.00
《GB/T 31001-2014高清晰度数字电视主观评价用测试图像》由TC239（全国广播电影电视标准化技术委员会）归口，主管部门为国家广播电视总局。
本标准规定了高清晰度数字电视主观评价用的测试图像。
本标准适用于高清晰度数字电视系统和设备的图像质量主观评价,也可用于客观测试。
Introduction
1. Standard Overview
GB/T31001-2014 "Test Images for Subjective Evaluation of High Definition Digital Television" was officially implemented in 2015. The standard aims to provide standardized test tools and methods for subjective evaluation of image quality of high-definition digital television systems. By using specific test images, the performance of television systems and equipment can be accurately evaluated.
2. Comparison of standard frameworks
| Standard dimensions | GB/T31001-2014 | GY/T228-2007 | ITU-R BT.500-11 |
|---|---|---|---|
| Scope of application | Image quality evaluation of high-definition digital television systems and equipment | Standard definition digital television evaluation | International Telecommunication Union recommended method |
| Number of test images | 25 static images + 13 dynamic sequences | 20 static images | General method, not specified |
| Evaluation dimensions | Covering multiple dimensions such as color, details, motion compensation, etc. | Basic quality assessment | Combination of subjective and objective |
3. Technical background and evolution analysis
Technical background:With the rapid development of high-definition digital TV technology, traditional test methods can no longer meet high-definition requirements. This standard fills the gap in the field of high-definition TV testing in China.
Technical evolution:From GY/T228-2007 to GB/T31001-2014, the complexity and diversity of test images have been significantly improved, and dynamic sequence tests have been added, which are closer to actual application scenarios.
4. Implementation Suggestions
- Choose appropriate test images:Based on the performance requirements of the system under test, the test images in Table 1 should be used first.
- Storage and distribution:Ensure that the test images are stored and transmitted in 10-bit quantized and uncompressed formats.
- Authorized use:Non-commercial use is allowed, and commercial use requires formal authorization.
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