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Camera and light calibration from reflections on a sphere
2013
Computer Vision and Image Understanding
This paper introduces a novel method for recovering light directions and camera parameters using a single sphere. Traditional methods for estimating light directions using spheres either assume both the radius and center of the sphere being known precisely, or they depend on multiple calibrated views to recover these parameters. In this paper, it will be shown that light directions can be uniquely determined from specular highlights observed in a single view of a sphere without knowing or
doi:10.1016/j.cviu.2013.06.004
fatcat:tuduren6rjdhjnnb5s36nk2yyy