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- Title
Auto-calibrating photometric stereo using ring light constraints.
- Authors
Shiradkar, Rakesh; Tan, Ping; Ong, Sim
- Abstract
We propose an auto-calibration method for photometric stereo. Our method exploits constraints placed on light sources to recover their positions and the surface normals of an object up to a scaling and planar rotation ambiguity. The ambiguity is resolved with multi-view consistency constraints leading to a Euclidean reconstruction of the geometric shape of the object. Auto-calibration methods are helpful to overcome the limitations imposed by calibrating objects. We evaluate our algorithm with experiments on real world scenes.
- Subjects
PHOTOMETRIC stereo; AMBIGUITY; EUCLIDEAN algorithm; OBJECT tracking (Computer vision); COMPUTER algorithms
- Publication
Machine Vision & Applications, 2014, Vol 25, Issue 3, p801
- ISSN
0932-8092
- Publication type
Article
- DOI
10.1007/s00138-013-0591-0