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Near point light source location estimation from shadow edge correspondence
Author(s)
Date Issued
September 23, 2015
Type
Conference Paper
Abstract
The problem of near point light source location estimation is considered. The approach described here is based on a relationship between the cast shadow edge, the shadow-casting surface, and the light source. Given an optical-depth image pair available from an RGB-D camera, a method for near point light source location estimation is described. The method can be applied to a shadow-casting object with arbitrary and unknown geometry. Exhaustive multidimensional search is avoided by the proposed iterative one-dimensional search algorithm. Experimental results with real images are included.
Citation
Proceedings of the 2015 7th IEEE International Conference on Cybernetics and Intelligent Systems Cis 2015 and Robotics Automation and Mechatronics Ram 2015, 30-35, 2015