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A QCQP Approach to Triangulation
This video was recorded at 12th European Conference on Computer Vision (ECCV), Firenze 2012. Triangulation of a three-dimensional point from n≥2 two-dimensional images can be formulated as a quadratically constrained quadratic program. We propose an algorithm to extract candidate solutions to this problem from its semidefinite programming relaxations. We then describe a sufficient condition and a polynomial time test for certifying when such a solution is optimal. This test has no false positives. Experiments indicate that false negatives are rare, and the algorithm has excellent performance in practice. We explain this phenomenon in terms of the geometry of the triangulation problem.
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This work is licensed under a Attribution-NonCommercial-NoDerivs 3.0 United States
