On Discontinuous Optical Flow
Abstract
Retinal image motion and optical flow as its approximation are fundamental concepts in the field of vision, perceptual and computational. However, the computation of optical flow remains a challenging problem as image motion includes discontinuities and multiple values mostly due to scene geometry, surface translucency and various photometric effects such as surface reflectance. In this contribution, we analyze image motion in the frequency space with respect to motion iscontinuities and surface translucence. We derive, under models of constant and linear optical flow, the frequency structure of motion discontinuities due to occlusion and we demonstrate its various geometrical properties. The aperture problem is investigated and we show that the information content of an occlusion almost always disambiguates the velocity of an occluding signal suffering from the aperture problem.Downloads
Download data is not yet available.
How to Cite
Beauchemin, S. S., & Barron, J. L. (2012). On Discontinuous Optical Flow. Computing and Informatics, 19(3), 255–283. Retrieved from http://147.213.75.17/ojs/index.php/cai/article/view/562
Issue
Section
Articles