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DVQ: A digital video quality metric based on human vision (2001)
The growth of digital video has given rise to a need for computational methods for evaluating the visual quality of digital video. We have developed a new digital video quality metric, which we call DVQ (Digital Video Quality)1. Here we provide a brief description of the metric, and give a preliminary report on its performance. DVQ accepts a pair of digital video sequences, and computes a measure of the magnitude of the visible difference between them. The metric is based on the Discrete Cosine Transform. It incorporates aspects of early visual processing, including light adaptation, luminance and chromatic channels, spatial and temporal filtering, spatial frequency channels, contrast masking, and probability summation. It also includes primitive dynamics of light adaptation and contrast masking. We have applied the metric to digital video sequences corrupted by various typical compression artifacts, and compared the results to quality ratings made by human observers.
compression artifact, contrast masking, corrupted, digital video, Discrete Cosine Tran, DVQ, evaluating the visua, light adaptation, luminance and chroma, probability summatio, quality ratings, spatial and temporal, spatial frequency ch, video sequences, visual processing
Journal of Electronic Imaging, 10(1), 20-29.
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