Particle smoothing for solving ambiquity problems in one-shot structured light systems


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Heijden, F. van der and Berendsen, F.F. and Spreeuwers, L.J. and Schippers, E. (2011) Particle smoothing for solving ambiquity problems in one-shot structured light systems. In: International Conference on Computer Vision Theory and Applications, VISAPP 2011, 5-7 March 2011, Villamoura, Portugal (pp. pp. 531-537).

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Abstract:One-shot structured light systems for 3D depth reconstruction often use a periodic illumination pattern. Finding corresponding points in the image and projector plane, needed for a triangulation, boils down to phase estimation. The 2πN ambiguities in the phase cause ambiguities in the reconstructed depth. This paper solves these ambiguities by constraining the solution space to scenes that only contain objects with flat surfaces, i.e. polyhedrons. We develop a new particle filter that estimates the depth and solves the ambiguity problem. A state model is proposed for piecewise continuous signals. This state model is worked out to find the optimal proposal density of the particle filter. The approach is validated with a demonstration.
Item Type:Conference or Workshop Item
Copyright:© 2011 SciTEPress
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/79730
Official URL:http://dx.doi.org/10.5220/0003370005310537
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