System and method for advanced lens geometry fitting for imaging devices
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United States of America Patent
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Oct 31, 2017
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Jan 18, 2017
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Nov 11, 2016
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Abstract
A system and method for advanced lens geometry fitting is provided for projecting images using a projector with a non-planar lens. An initial estimate of intrinsic parameters of the projector can be determined, for example from a list; an initial estimate of extrinsic parameters of the projector can be determined based on the initial estimate of intrinsic parameters. The intrinsic parameters and extrinsic parameters can be optimized together by starting with a simple lens model and iteratively adding nonlinear terms, an error function evaluated at each iteration, for example for each set of intrinsic parameters in the list and the corresponding extrinsic parameters. As the values of the error function converges the optimized intrinsic parameters and the optimized extrinsic parameters can be used to generate images that are projected by the projector.
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