Verification on stability and reproducibility of DSCQS method for assessing 4K Ultra-HD video quality
Verification on stability and reproducibility of DSCQS method for assessing 4K Ultra-HD video quality
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DSCQS评估4K超高清视频质量方法的稳定性和重现性验证
DOI：
10.1109/qomex.2014.6982321
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Takanori Hayashi
中科院分区：
文献类型：
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作者：
Kimiko Kawashima;J. Okamoto;Takanori Hayashi
我们进行了主观质量评估测试，以研究使用DSCQS方法作为4K视频质量指标的可能性。对于4K视频，取决于编码速率，编码视频的质量可以接近参考视频的质量。因此，人们担心，非专家将无法对参考视频和评估视频之间的质量差异进行稳定和可重复的评估。我们使用质量接近4K参考视频的高质量评估视频和质量从低到高的评估视频进行了两次主观质量评估测试。结果表明，这两个测试之间有很高的相关性，4K视频的评估稳定性几乎与全高清视频相同。因此，可以使用DSCQS方法作为评估4K视频质量的指标。
We conducted subjective quality assessment tests to investigate the possibility of using the DSCQS method as a metric for 4K video quality. With 4K video, the quality of the encoded videos may be close to that of the reference video depending on the encoding rate. Therefore, there is concern that non-experts will not be able to make a stable and reproducible assessment of the difference in quality between the reference and assessment videos. We conducted two subjective quality assessment tests using high-quality assessment videos that were close in quality to the 4K reference videos and using assessment videos that ranged in quality from low to high. The results showed that there was high correlation between these two tests and that the stability of assessment of 4K videos was almost the same as that of full HD videos. It is therefore possible to use the DSCQS method as a metric for assessing 4K video quality.