Monocular transparency generates quantitative depth.
Monocular zones adjacent to depth steps can create an impression of depth in the absence of binocular disparity. However, the magnitude of depth is not specified. We designed a stereogram that provides information about depth magnitude but which has no disparity. The effect depends on transparency rather than occlusion. For most subjects, depth magnitude produced by monocular transparency was similar to that created by a disparity-defined depth probe. Addition of disparity to monocular transparency did not improve the accuracy of depth settings. The magnitude of depth created by monocular occlusion fell short of that created by monocular transparency.
Howard
Ian P
IP
Centre for Vision Research, York University, Toronto, Ont, Canada M3J 1P3. ihoward@cvr.yorku.ca
Duke
Philip A
PA
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D003198:Computer Simulation; D003867:Depth Perception / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010364:Pattern Recognition, Visual; D015357:Vision Disparity / Q000502:physiology*; D015349:Vision, Monocular / Q000502:physiology*