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.
|Title of host publication||Proceedings of Sixth International Workshop on Quality of Multimedia Experience 2014|
|Number of pages||6|
|Pages||202 - 207|
|Publication status||Published - 2014|
|Event||6th International Workshop on Quality of Multimedia Experience - Singapore, Singapore|
Duration: 18 Sep 2014 → 20 Sep 2014
|Conference||6th International Workshop on Quality of Multimedia Experience|
|Period||18/09/2014 → 20/09/2014|
- Attribute test
- Local Backlight dimming
- Partial Least Square regression
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.