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广播电视系统数字技术发展迅猛,广播电视系统数字信号的测试标准或在研制,或在完善。长期以来,业内对数字视频的讨论大多数集中在眼图、抖动等接口指标上。采用什么样的评价方法,才能更好地评价数字图像质量是目前电视技术研究的热点。目前数字电视系统测量有两种方法:主观评价和客观评价。本文主要介绍了PQA600测试方法,是图像质量主观评价的客观化测试方法,所分析的结果具有可观察性和数值性。利用PQA600的这两种特性,我们对两种主流高清编码方式AVS+和H.264进行了测试和分析。
The rapid development of radio and television digital technology, radio and television digital signal testing standards or in the development, or in improvement. For a long time, the discussion of digital video in the industry mostly focused on the interface indicators such as eye diagram and jitter. What kind of evaluation method can we use to evaluate the quality of digital images better is the hotspot in the field of television technology. At present, there are two methods for measuring digital TV system: subjective evaluation and objective evaluation. This article mainly introduces the PQA600 test method, which is an objective test method of subjective evaluation of image quality. The result of the analysis is observable and numerical. Taking advantage of these two features of the PQA600, we tested and analyzed two mainstream HD encoding methods, AVS + and H.264.