A Metric for Visual Quality of Digital Video (ARC-14236)

The emerging infrastructure for digital video lacks a critical component: a reliable means for automatically measuring visual quality. Such a means is essential for evaluation of codecs, for monitoring broadcast transmissions and for ensuring the most efficient compression of sources and utilization of communication bandwidths. Possible disadvantages of these metrics are that they may either not be based closely enough upon human perception, in which case they may not accurately measure visual quality, or that they may require amounts of memory or computation that restrict the contexts in which they may be applied. The goal of this technology has been to construct a metric that is reasonably accurate but computationally efficient.

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