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Hough transform based corner detection for laser beam positioning
Photonic Devices and Algorithms for Computing VII
In laser beam alignment in addition to detecting position, one must also determine the rotation of the beam. This is essential when a commissioning new laser beam for National Ignition Facility located at the Lawrence Livermore National Laboratory. When the beam is square, the positions of the corners with respect to one another provides an estimate of the rotation of the beam. This work demonstrates corner detection in the presence or absence of a second order non-uniform illumination causeddoi:10.1117/12.621315 fatcat:2hsb5tqvfzafllzrfacalkhlkm