Coordinate compensation method and device based on central projection, equipment and medium

The invention relates to the field of machine vision, provides a coordinate compensation method and device based on central projection, equipment and a medium, and solves the technical problem that in the prior art, an error exists between the position of a part acquired by a camera and the actual position of the part, and the guiding precision is affected. The method comprises the following steps: acquiring a first coordinate of a feature point of a target part in a first coordinate system according to a target image; establishing a compensation coordinate system according to the first coordinate system and the feature points; acquiring a second coordinate of the feature point in the compensation coordinate system according to the first coordinate; and performing error compensation on the second coordinate according to the actual size parameter of the target part and the target working distance to obtain a compensation coordinate. According to the method, the error between the position of the part obtained b