Absolute Category Rating

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A five-level scale for rating quality.
A five-level scale for rating quality.

Absolute Category Rating (ACR) is a test method used in quality tests. It has been standardized in ITU-T Recommendation P.910.[1] In this method, a single test condition (generally an image or a video sequence) is presented to the viewers once only. They should then give a quality rating on an ACR scale. Test conditions should be presented in random order.

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  1. ^ P.910 : Subjective video quality assessment methods for multimedia applications. ITU-T Recommendation, approved in 1999-09. Retrieved on 2008-05-29.

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