Coal flow identification method based on background difference algorithm

The invention belongs to the technical field of scraper transportation coal flow visual identification, and particularly relates to a coal flow identification method based on a background difference algorithm. Comprising the steps that S1, a plurality of cameras installed on a reversed loader in parallel are used for collecting coal seam images of the coal unloading end of the scraper conveyor at the same time; s2, determining an optimal sequence image in the three sequence images collected at the same time, and performing region-of-interest division; s3, extracting the contour of a motion area in the image; s4, performing line repairing on the contour of the motion area, and filling the repaired contour of the motion area; s5, calculating the number of pixel points in the motion region, and calculating the area of the motion region according to a proportional scale; and S6, calculating the coal flow volume. The coal flow information on the scraper conveyer can be obtained, and the method is suitable for actu