27 May 2011 A new type of color-coded light structures for an adapted and rapid determination of point correspondences for 3D reconstruction
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Abstract
This paper proposes a new type of color coded light structures for the inspection of complex moving objects. The novelty of the methods relies on the generation of free-form color patterns permitting the projection of color structures adapted to the geometry of the surfaces to be characterized. The point correspondence determination algorithm consists of a stepwise procedure involving simple and computationally fast methods. The algorithm is therefore robust against varying recording conditions typically arising in real-time quality control environments and can be further integrated for industrial inspection purposes. The proposed approach is validated and compared on the basis of different experimentations concerning the 3D surface reconstruction by projecting adapted spatial color coded patterns. It is demonstrated that in case of certain inspection requirements, the method permits to code more reference points that similar color coded matrix methods.
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Yannick Caulier, Yannick Caulier, Luc Bernhard, Luc Bernhard, Klaus Spinnler, Klaus Spinnler, } "A new type of color-coded light structures for an adapted and rapid determination of point correspondences for 3D reconstruction", Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 808232 (27 May 2011); doi: 10.1117/12.889525; https://doi.org/10.1117/12.889525
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