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Viewing comfort with stereoscopic pictures: An experimental study on the subjective effects of disparity magnitude and depth of focus

: Wopking, M.


Journal of the Society for Information Display 3 (1995), No.3, pp.101-103
ISSN: 1071-0922
Journal Article
Fraunhofer HHI ()
human factors; stereo image processing; three-dimensional displays; visual perception; viewing comfort; stereoscopic pictures; subjective effects; disparity magnitude; depth of focus; binocular disparity; depth-of-focus; stereoscopic slides; standardized assessment procedure; ccir recommendation 500; picture luminance; response patterns; perceptual mechanism

A wide range of binocular disparity (0-1 40 arcm in) and depth-of-focus (DOF) conditions (resolution of non-fixated motif, 1-23 cpd) were presented via stereoscopic slides to 12 non-expert subjects. Viewing comfort was evaluated by a standardized assessment procedure (CCIR Recommendation 500). Results confirm the traditional threshold of 70 arcmin for disparities. Larger disparities lead to a marked drop in comfort ratings unless critical parts of the image are heavily blurred. In this case, even disparities of 140 arcmin are tolerated. Picture luminance (47 vs. 17 cd/m2) had no influence. The high consistency of the observed response patterns suggests a stable perceptual mechanism.