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1. The Role of Monocular Regions in Binocular Vision - Monocular regions are produced by nearer surfaces hiding the background differentially in the two eyes. We have discovered a number of ways in which the presence of monocular regions elicits or influences perceived binocular depth.
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Demos
Stereoscopic Sliver
Monocular Gap Stereopsis
Phantom Occluder
Tilted and Curved Phantom Occluders |
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2. The Scaling of Stereopsis for Distance - Recently we showed that perspective information can provide the necessary distance scaling factor for seeing depth from binocular disparity and that stereo greatly enhances depth perception at distances of 40 metres plus. (This work was carried out in a disused steam railway tunnel). The way stereo scaling operates at greater distances is ongoing research with Stephen Palmisano.
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Tunnel Picture
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3. The stimulus conditions determine the influence of stereopsis - We have investigated spatial conditions influencing stereo dominance over relative size and also the induction and spread of stereo depth contrast across and within surfaces.
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4. Occlusion, Subjective Contours and Figure-ground - For some time we have been using subjective contours as a way of investigating the determinants of perceived occlusion and also perceived holes (ground perception).
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Entropy (or Disorder) Contrast
Subjective contours may be seen without relatability
The Forest and the Plane |
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5. Occlusion and Art - How impressions of occlusion are created (or not) in paintings and the role occlusion plays symbolically and aesthetically in those paintings.The emphasis so far has been on early Renaissance and Australian aboriginal art.
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Duccio
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