K. Brunnström, I. Ananth, C. Hedberg, K. Wang, B. Andrén, Marcus Barkowsky
36.4: Comparison between Different Rating Scales for 3D TV
SID Symposium Digest of Technical Papers, vol. 44, no. 1, pp. 509-512
Stereoscopic 3D viewing experience has been studied quite intensively recently, but still the subjective test methods have not yet been settled. It has become clear that the 3D viewing experience cannot easily be described by just one scale. This paper describes a study where three different rating scales (Quality, Discomfort and Presence) are compared in a subjective test, combined with two viewing distances. The results shows that in a stereoscopic 3D video quality test targeting mainly coding distortions one scale such as video quality could be sufficient.
Beitrag (Sammelband oder Tagungsband)
K. Wang, K. Brunnström, Marcus Barkowsky, M. Urvoy, M. Sjöström, P. Le Callet, S. Tourancheau, B. Andrén
Stereoscopic 3D video coding quality evaluation with 2D objective metrics
Proceedings of SPIE Vol. 8648: Stereoscopic Displays and Applications XXIV
The 3D video quality is of highest importance for the adoption of a new technology from a user’s point of view. In this paper we evaluated the impact of coding artefacts on stereoscopic 3D video quality by making use of several existing full reference 2D objective metrics. We analyzed the performance of objective metrics by comparing to the results of subjective experiment. The results show that pixel based Visual Information Fidelity metrics fits subjective data the best. The 2D stereoscopic video quality seems to have dominant impact on the coding artefacts impaired stereoscopic videos.
Marcus Barkowsky, S. Tourancheau, K. Brunnström, K. Wang, B. Andrén
55.3: Crosstalk Measurements of Shutter Glasses 3D Displays
SID Symposium Digest of Technical Papers, vol. 42, no. 1, pp. 812-815
Crosstalk is probably one of the main perceptual factors contributing to perceived image quality and visual comfort. The Video Quality Experts Group (VQEG) within their 3D video quality project is specifying a practical measurement procedure that will produce consistent results across laboratories. This paper is part of that effort. Two different method of measuring cross talk on shutter glasses stereo displays have been studied. One is based on time average luminance measurements and the other on temporal measurements. The results show that crosstalk is roughly 0.5% but that there are differences in the crosstalk between the two eyes in the shutter glasses.