Investigating subjective attributes of quality for videos displayed with local backlight dimming

Claire Mantel, Soren Bech, Soren Forchhammer, Jari Korhonen, Jesper Melgaard Pedersen

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

3 Citations (Scopus)

Abstract

This paper investigates what composes the quality of videos displayed on LCD with local backlight dimming. In a subjective experiment, participants assessed the level of nine attributes defined using the Qualitative Descriptive Analysis method. Results show that three attributes (Contrast, Change over time and Grain) vary significantly depending on the backlight dimming algorithm. Predicting global quality grades from the attributes using Partial Least Square (PLS) regression does not provide satisfying results. However, the attributes can be represented through objective measures and a similar model mixing attributes and one objective measure can predict global quality satisfyingly.

Original languageEnglish
Title of host publication2014 6th International Workshop on Quality of Multimedia Experience, QoMEX 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages202-207
Number of pages6
ISBN (Electronic)9781479965366
DOIs
Publication statusPublished - 11 Dec 2014
Event2014 6th International Workshop on Quality of Multimedia Experience, QoMEX 2014 - Singapore, Singapore
Duration: 18 Sep 201420 Sep 2014

Conference

Conference2014 6th International Workshop on Quality of Multimedia Experience, QoMEX 2014
Country/TerritorySingapore
CitySingapore
Period18/09/1420/09/14

Keywords

  • Attribute test
  • Local Backlight dimming
  • Partial Least Square regression
  • Subjective quality

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