Home // International Journal On Advances in Telecommunications, volume 5, numbers 1 and 2, 2012 // View article

Effect of Global and Local Brightness on Quality of 3D and 2D Visual Perception

Authors:
Mahsa T. Pourazad
Zicong Mai
Panos Nasiopoulos

Keywords: 3D TV; brightness; quality of experience; 3D perception; contrast

Abstract:
There are several different factors that affect the perceived quality of 3D content. Our objective in this paper is to investigate how the global and local change of brightness in a scene will affect the overall 3D visual perception. Our work contains two studies: 1) global change of brightness, which is achieved by setting different exposure times on the camera, and 2) local change of brightness, where the brightness of the background is consistent and the object’s brightness is changed using an external light source and/or a reflector disk. Subjective evaluations were performed, with the subjects being asked to rate the 3D perceptual quality of each sequence. The results of both studies demonstrate marginal difference in the brightness effects between 3D and 2D videos. The latter study showed that the Weber contrast between objects of interest and background should be within the range of -0.35 to 0.55 to provide viewers with high quality 3D experience.

Pages: 101 to 110

Copyright: Copyright (c) to authors, 2012. Used with permission.

Publication date: June 30, 2012

Published in: journal

ISSN: 1942-2601