Inspection pointer type circular instrument identification method and device

The invention relates to an inspection pointer type circular instrument identification method and device, and the method comprises the steps: obtaining and storing a standard instrument region image when an inspection task is not received; identifying and calibrating the standard instrument area image, determining ellipse information with the best fitting degree with the target instrument panel, converting the standard instrument area image into a standard dial plate image according to the ellipse information, storing range information of the standard dial plate image after calibration, and identifying pointer information of the standard dial plate image; when an inspection task is received, adjusting shooting parameters to shoot a target instrument panel to obtain a current position image, moving the target instrument panel to the center of a shooting view according to pixel positions, obtaining a current instrument area map through cutting based on a standard instrument panel image, and recognizing correspo