Accurate measurement positioning method based on calibration algorithm
A positioning method and precise measurement technology, applied in measurement devices, calculations, image data processing, etc., can solve the problems of high requirements for external factors, low measurement accuracy, and high cost, avoiding cumbersome processes, avoiding low precision, The effect of high machining accuracy
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[0035]In order to deepen the understanding of the present invention, the present invention will be further detailed in connection with the present invention, and the present embodiment is intended to be construed as limiting the scope of the invention.
[0036]according tofigure 1 As shown, this embodiment provides an accurate measurement positioning method based on the calibration algorithm, including the following steps:
[0037]Step 1: Get the captured image angular sub-pixel coordinate, use focal length fixed camera to transform any position of the known dimensional parameters, the plurality of shots of the posture to acquire the image, convert the image to a grayscale map , Grayscale after the above treatmentFigure II After the value, the angular point detection algorithm determines whether or not there is angular point. If there is an angular point, the precision sub-pixel coordinate of the angle point is obtained;
[0038]Step 2: The acquisition of the parameters in the camera device,...
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