Abstract：
:The orientation disparity field from two orthographic views of an inclined planar surface patch (covered by straight lines) is analyzed, and a new tool to extract the patch orientation is provided: the function coupling the average orientation of each pair of corresponding surface contours with their orientation disparity. This function allows identifying the tilt of the surface, and two indeterminacy functions describing the set of surface inclinations (around the vertical and horizontal axes) over convergence angle values compatible with the orientation disparity field. Results of simulations show that the selection of inclination values matching the difference between the areas below the indeterminacy functions are consistent with some surface orientation effects found in psychophysical and computational experiments, like: the unbiased tilt vs. biased slant estimates, the slant underestimation, the surface orientation anisotropy, and the slant/tilt covariation.
journal_name
Vision Resjournal_title
Vision researchauthors
Fantoni Cdoi
10.1016/j.visres.2008.08.015subject
Has Abstractpub_date
2008-11-01 00:00:00pages
2509-22issue
25eissn
0042-6989issn
1878-5646pii
S0042-6989(08)00418-5journal_volume
48pub_type
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