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Calibration Target corrects lens distortion for vision machine in vision, image measurement, photogrammetry, 3D reconstruction, etc.Determine the conversion between physical size and pixels. And to determine the relationship between the 3D geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish a geometric model of camera imaging.The geometric model of the camera can be obtained by shooting the flat plate with fixed spacing pattern and calculating by the calibration algorithm, so as to obtain the high-precision measurement and reconstruction results.A plate with a fixed spacing pattern array is the Calibration Target.
For vision measuring machine.