Light spot positioning method and device, equipment and medium

Abstract

The invention relates to the technical field of optical calibration, in particular to a light spot positioning method and device, equipment and a medium, and the method comprises the steps: controlling a lamp bead in a specified direction in a current image region to flicker based on a first starting instruction; acquiring a plurality of images of the current image area according to a time sequence based on an imaging device to form a light spot image sequence; performing gray value subtraction on two sequentially adjacent light spot images of the light spot image sequence according to a time sequence, and taking absolute values for accumulation to obtain a flicker heat map; carrying out binarization segmentation on the scintillation heat map to obtain a positioning map; and identifying a bright area in the positioning map to obtain a positioned light spot position. According to the invention, high-precision positioning of the target light spot in a complex environment is realized, the anti-interference capability of the system is significantly improved, the target light spot can be effectively distinguished from environmental stray light and other non-target light sources, and the stability and reliability of a measurement result are ensured.

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