Subjective quality of videos displayed with local backlight dimming at different peak white and ambient light levels

Claire Mantel, Jari Korhonen, Søren Forchhammer, Jesper Pedersen, Søren Bech

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this paper the influence of ambient light and peak white (maximum brightness) of a display on the subjective quality of videos shown with local backlight dimming is examined. A subjective experiment investigating those factors is set-up using high contrast test sequences. The results are firstly analyzed with an ANalysis Of VAriance, which shows significant effect of the Sequence and Algorithms interactions and the Peak White and Ambient Light interactions. This latter allows us to define test cases for which the peak white and ambient light are adapted to one another. An objective model of the subjective grades is then computed using Partial Least Squares regression that achieves 0.68 correlation.
Original languageEnglish
Title of host publicationProceedings of 2015 Seventh International Workshop on Quality of Multimedia Experience
PublisherIEEE
Publication date2015
Pages1-6
ISBN (Print)9781479989584
DOIs
Publication statusPublished - 2015
Event7th International Workshop on Quality of Multimedia Experience - Costa Navarino, Messinia, Greece
Duration: 26 May 201529 May 2015

Conference

Conference7th International Workshop on Quality of Multimedia Experience
Country/TerritoryGreece
CityCosta Navarino, Messinia
Period26/05/201529/05/2015

Keywords

  • Communication, Networking and Broadcast Technologies
  • Signal Processing and Analysis
  • Algorithm design and analysis
  • Computational modeling
  • Light emitting diodes
  • Lighting
  • Observers
  • Quality assessment
  • Videos

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