Optimizing the Perceptual Quality of Real-Time Multimedia Applications
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AbstractThe perceptual quality of a real-time multimedia system depends on a combination of performance metrics that are affected by run-time control inputs. As perceptual quality is subjective in nature and lacks a well-defined model with respect to control inputs, designing a multimedia system to achieve high perceptual quality requires a black-box approach to tune control inputs according to preferences from subjective tests. This article presents a systematic method, called OptPQ, for finding operating points that achieve good perceptual quality using an offline measured just-noticeable difference (JND) profile to capture human awareness of the adjustment of control inputs. It also presents an online method for combining multiple independent JND profiles to find the best control inputs.
All Author(s) ListXu J., Wah B.W.
Journal nameIEEE MultiMedia
Volume Number22
Issue Number4
Place of PublicationUnited States
Pages14 - 28
LanguagesEnglish-United Kingdom
Keywordsdata analysis, interactive real-time multimedia, Internet, JND profile, just-noticeable difference, multimedia, perceptual quality, quality of experience

Last updated on 2020-09-08 at 04:20