Line structured light center extraction method and system based on space gray gravity center propulsion

The invention relates to a line structured light center extraction method and system based on space gray gravity center propulsion, and the method comprises the steps: positioning a starting point of a laser stripe region in a laser stripe image based on an eight-neighborhood judgment method, carrying out the propulsion through combining with the trend of a laser skeleton, and selecting a laser stripe space region; performing spatial gray gravity center extraction on the laser stripe spatial region to obtain a laser stripe sub-pixel center coordinate in the laser stripe spatial region; and adopting a 3 sigma criterion to eliminate abnormal center points in the laser stripe sub-pixel center coordinates to obtain a laser center coordinate point. According to the invention, the extraction precision is high, the processing capability of the underexposure light strip image can be enhanced, and the limitation of the environment on the line structured light measurement can be effectively reduced; the method can be a