Dynamic displacement measurement method for eliminating illumination interference based on dynamic correction of spatial variable illumination map

The invention provides a dynamic displacement measurement method for eliminating illumination interference based on dynamic correction of a space variable illumination map, which comprises the following steps of: extracting a low-frequency illumination component of an image based on a rapid guide filtering method, realizing local brightness representation of the image by utilizing the illumination map, combining with a gamma correction function, and finally performing target tracking on the corrected image based on template matching. Accurately positioning the pixel coordinates of the template; according to the method provided by the invention, the intensity of the dark area in the illumination domain can be improved, the details of the input image can be displayed under the non-uniform low illumination condition, and the loss of edge sharpness can be reduced to the greatest extent, so that the template matching algorithm has relatively strong robustness when carrying out dynamic displacement measurement unde