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  • Title: Are camera, projector, and camera-projector calibrations different?
    Author: Juarez-Salazar R, Esquivel-Hernandez S, Diaz-Ramirez VH.
    Journal: Appl Opt; 2023 Aug 01; 62(22):5999-6006. PubMed ID: 37706954.
    Abstract:
    Structured light projection systems have become a referent in three-dimensional optical metrology. Calibration of the cameras and projectors of these systems is one of the most critical procedures to achieve high-accuracy measurements. However, the calibration process requires some clarifications for adequate experimental implementation. For instance, it is typically assumed that the calibration of a camera-projector pair differs from calibrating a camera, and the calibration of a projector is possible only with an attached auxiliary camera. This paper presents a unified methodology for camera, projector, and camera-projector calibrations. Experimental results are discussed, providing practical insights into how structured light systems are calibrated. The MATLAB code and data employed in this study are available.
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