Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues |
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| Authors: | Jason Bell Edwin Dickinson David R. Badcock Frederick A. A. Kingdom |
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| Affiliation: | 1.Research School of Psychology, Australian National University;2.School of Psychology, University of Western Australia;3.McGill Vision Research, Department of Ophthalmology, McGill University |
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| Abstract: | The speed and accuracy of object recognition is compromised by a change in viewpoint; demonstrating that human observers are sensitive to this transformation. Here we discuss a novel method for simulating the appearance of an object that has undergone a rotation-in-depth, and include an exposition of the differences between perspective and orthographic projections. Next we describe a method by which human sensitivity to rotation-in-depth can be measured. Finally we discuss an apparatus for creating a vivid percept of a 3-dimensional rotation-in-depth; the Wheatstone Eight Mirror Stereoscope. By doing so, we reveal a means by which to evaluate the role of stereoscopic cues in the discrimination of viewpoint rotated shapes and objects. |
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| Keywords: | Behavior Issue 82 stereo curvature shape viewpoint 3D object recognition rotation-in-depth (RID) |
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