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- W2139982251 abstract "In this paper investigations are conducted to simplify and refine a vision-model-based video quality metric without compromising its prediction accuracy. Unlike other vision-model-based quality metrics, the proposed metric is parameterized using subjective quality assessment data recently provided by the Video Quality Experts Group. The quality metric is able to generate a perceptual distortion map for each and every video frame. A perceptual blocking distortion metric (PBDM) is introduced which utilizes this simplified quality metric. The PBDM is formulated based on the observation that blocking artifacts are noticeable only in certain regions of a picture. A method to segment blocking dominant regions is devised, and perceptual distortions in these regions are summed up to form an objective measure of blocking artifacts. Subjective and objective tests are conducted and the performance of the PBDM is assessed by a number of measures such as the Spearman rank-order correlation, the Pearson correlation, and the average absolute error The results show a strong correlation between the objective blocking ratings and the mean opinion scores on blocking artifacts." @default.
- W2139982251 created "2016-06-24" @default.
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- W2139982251 date "2002-01-01" @default.
- W2139982251 modified "2023-10-09" @default.
- W2139982251 title "Vision-model-based impairment metric to evaluate blocking artifacts in digital video" @default.
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- W2139982251 doi "https://doi.org/10.1109/5.982412" @default.
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