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Subjective video quality tests on Ultra HDTV video sequences
Stavěl, Marek ; Fliegel, Karel (referee) ; Kufa, Jan (advisor)
This semestral thesis describes the possibilities of source coding videos, the attributes of the videos and their recommended changes for test. Subjective methods of scores of quality and their division into metrics with references and without references are delineated. In this work, a draft of videos for test of comparison of set metrics is specified here. Further, the coding and options of attributes of videosequences for scoring of the quality of the picture is presented. The displaying system is described and quazicrowdsorcing system of collecting the datas was created.
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Comparison Of Modern Video Codecs For 4k And 8k Video Content
Budáč, Adam
The purpose of this paper is to compare modern video codecs, that ensure delivery of 4Kand 8K video content in high quality at reasonable bitrates. There are compared three video codecs:HEVC, VVC and the AV1. Video quality assessment is ensured by using four objective video qualitymetrics, which are: PSNR, SSIM, VIF and VMAF. For tests, there were chosen two from total ofseven videosequencies with different parameters: very high resolutions, high framerates, wide rangeof spatial and temporal indexes and 3D and 360° projection.
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Subjective video quality tests on Ultra HDTV video sequences
Stavěl, Marek ; Fliegel, Karel (referee) ; Kufa, Jan (advisor)
This semestral thesis describes the possibilities of source coding videos, the attributes of the videos and their recommended changes for test. Subjective methods of scores of quality and their division into metrics with references and without references are delineated. In this work, a draft of videos for test of comparison of set metrics is specified here. Further, the coding and options of attributes of videosequences for scoring of the quality of the picture is presented. The displaying system is described and quazicrowdsorcing system of collecting the datas was created.
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