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  2. Comparison of video codecs - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_video_codecs

    The quality the codec can achieve is heavily based on the compression format the codec uses. A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.

  3. VQuad-HD - Wikipedia

    en.wikipedia.org/wiki/VQuad-HD

    Remote destination quality monitoring when a copy of the source is available at the point of measurement. Quality measurement for monitoring of a storage or transmission system that utilizes Video compression and decompression techniques, either a single pass or a concatenation of such techniques. Lab testing of video systems. VQuad-HD flowchart

  4. Video quality - Wikipedia

    en.wikipedia.org/wiki/Video_quality

    The main goal of many-objective video quality metrics is to automatically estimate the average user's (viewer's) opinion on the quality of a video processed by a system. Procedures for subjective video quality measurements are described in ITU-R recommendation BT.500 and ITU-T recommendation P.910. In such tests, video sequences are shown to a ...

  5. Subjective video quality - Wikipedia

    en.wikipedia.org/wiki/Subjective_video_quality

    The minimum number of subjects that are required for a subjective video quality study is not strictly defined. According to ITU-T, any number between 4 and 40 is possible, where 4 is the absolute minimum for statistical reasons, and inviting more than 40 subjects has no added value.

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  8. Mean opinion score - Wikipedia

    en.wikipedia.org/wiki/Mean_opinion_score

    Mean opinion score (MOS) is a measure used in the domain of Quality of Experience and telecommunications engineering, representing overall quality of a stimulus or system. It is the arithmetic mean over all individual "values on a predefined scale that a subject assigns to his opinion of the performance of a system quality". [ 1 ]

  9. Video Multimethod Assessment Fusion - Wikipedia

    en.wikipedia.org/wiki/Video_Multimethod...

    The metric is based on initial work from the group of Professor C.-C. Jay Kuo at the University of Southern California. [1] [2] [3] Here, the applicability of fusion of different video quality metrics using support vector machines (SVM) has been investigated, leading to a "FVQA (Fusion-based Video Quality Assessment) Index" that has been shown to outperform existing image quality metrics on a ...

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