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Cue Combination and the Effect of Horizontal Disparity and Perspective on Stereoacuity

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84811

Henning,  GB
Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons83968

Hill,  NJ
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Zalevski, A., Henning, G., & Hill, N. (2007). Cue Combination and the Effect of Horizontal Disparity and Perspective on Stereoacuity. Spatial Vision, 20(1), 107-138. doi:10.1163/156856807779369706.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-CEE7-D
Zusammenfassung
Relative depth judgments of vertical lines based on horizontal disparity deteriorate enormously when the lines form part of closed configurations (Westheimer, 1979). In studies showing this effect, perspective was not manipulated and thus produced inconsistency between horizontal disparity and perspective. We show that stereoacuity improves dramatically when perspective and horizontal disparity are made consistent. Observers appear to use unhelpful perspective cues in judging the relative depth of the vertical sides of rectangles in a way not incompatible with a form of cue weighting. However, 95 confidence intervals for the weights derived for cues usually exceed the a-priori [0-1] range.