Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Stephen Voran; Stephen Wolf

Abstract: Measurements that quantify perceptual video attributes in both the spatial and temporal domains are extracted from the video that has undergone digital coding and compression. These measurements are then used to compute a single score that quantifies the perceptual impact of the impairments present in the video sequence. This objective score is well-correlated (r=.92) with impairment assessments made by human viewers. A collection of 36 video scenes with a wide range of spatial and temporal complexity were passed through 28 video systems covering the range of compression from 45 Mbs/sec to 56 kbs/sec, including bit errors introduced into the digital transmission channel.

Keywords: digital; performance; models; video; quality; parameters; objective; subjective; correlation; spatial; temporal; compression; conferencing; assessment; bit; errors

To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572

For technical information concerning this report, contact:

Stephen D. Voran
Institute for Telecommunication Sciences
(303) 497-3839

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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