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Publication
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Digital video based luminance mapping systems require the establishment of a precise relation between the considered spatial referential and the associated pixel coordinates on the image, that may vary with the measurement conditions. In this paper, an adaptation of the image calibration according to the referential variations is proposed, based on the use of a set of matrices individually associated to each spatial coordinate. This approach is given through an application example on a recent digital imaging-based bi-directional photogoniometric device.