Method and apparatus for measuring the quality of video data
First Claim
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1. A method for generating a subjective reference model used to estimate the quality of input-video data, the method comprising the steps of:
- obtaining a plurality of average subjective scores from a plurality of sample video data comprising the steps ofproviding the plurality of said sample video data to a plurality of viewers under a predetermined condition;
converting each of the plurality of said sample video data into a plurality of processed video data according to predetermined criteria; and
,obtaining said average subjective scores based on the plurality of said sample video data and the corresponding said processed video data;
calculating a plurality of image metrics for each of the plurality of said average subjective scores;
converting at least some of the plurality of said image metrics into corresponding, perceived quality metrics; and
,deriving said model based on the plurality of said image metrics and said perceived quality metrics.
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Abstract
The present invention relates to a method and apparatus for generating a model used to estimate the quality of input-video data. The apparatus is configured to obtain a plurality of average subjective scores from a plurality of sample video data, and a plurality of image metrics for each of the plurality of said average subjective scores is calculated. Some of the plurality of said image metrics is converted into corresponding, perceived quality metrics, then an image-quality metric is predicted based on the calculated quality metrics and the perceived quality metrics.
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Citations
24 Claims
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1. A method for generating a subjective reference model used to estimate the quality of input-video data, the method comprising the steps of:
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obtaining a plurality of average subjective scores from a plurality of sample video data comprising the steps of providing the plurality of said sample video data to a plurality of viewers under a predetermined condition; converting each of the plurality of said sample video data into a plurality of processed video data according to predetermined criteria; and
,obtaining said average subjective scores based on the plurality of said sample video data and the corresponding said processed video data; calculating a plurality of image metrics for each of the plurality of said average subjective scores; converting at least some of the plurality of said image metrics into corresponding, perceived quality metrics; and
,deriving said model based on the plurality of said image metrics and said perceived quality metrics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for generating a subjective reference model used to estimate the quality of input video data, comprising:
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a processor; a memory, coupled to said processor, said memory being configured to allow the processor to; obtain a plurality of average subjective scores from a plurality of sample video data by; providing the plurality of said sample video data to a plurality of viewers under a predetermined condition; converting each of the plurality of said sample video data into a plurality of processed video data according to predetermined criteria; and
,obtaining said average subjective scores based on the plurality of said sample video data and the corresponding said processed video data calculate a plurality of image metrics for each of the plurality of said average subjective scores; convert at least some of the plurality of said image metrics into corresponding perceived quality metrics; and
,derive said subjective reference model based on the plurality of said image metrics and said perceived quality metrics. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification