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

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

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

Abstract

This paper investigates what composes the quality of videos displayed on LCD with local backlight dimming. In a sub- jective experiment, participants assessed the level of nine attributes defined using the Qualitative Descriptive Anal- ysis 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 publicationProceedings of Sixth International Workshop on Quality of Multimedia Experience 2014
Number of pages6
PublisherIEEE
Publication date2014
Pages202 - 207
Publication statusPublished - 2014
Event6th International Workshop on Quality of Multimedia Experience - Singapore, Singapore
Duration: 18 Sep 201420 Sep 2014

Conference

Conference6th International Workshop on Quality of Multimedia Experience
CountrySingapore
CitySingapore
Period18/09/201420/09/2014

Keywords

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

Cite this

Mantel, C., Bech, S., Forchhammer, S., Korhonen, J., & Pedersen, J. M. (2014). Investigating subjective attributes of quality for videos displayed with local backlight dimming. In Proceedings of Sixth International Workshop on Quality of Multimedia Experience 2014 (pp. 202 - 207). IEEE.