Illegal stall detection method and device

The invention provides an illegal stall detection method and device. The method comprises the steps of obtaining a video frame corresponding to a to-be-detected place; performing target detection on the video frame by using the trained detection model to obtain a first stall which is a morphological fixed stall; performing image segmentation on the video frame by using the trained segmentation model, and performing connected domain processing on a segmentation result to obtain a second stall which is a stall with changeable forms; acquiring a pre-configured non-permitted stall area of the to-be-detected place; and regarding the stall in the first stall and the second stall, of which the overlapping area with the stall non-allowing area reaches a set threshold value, as an illegal stall. According to the method, the respective advantages and disadvantages of the detection model and the segmentation model are fully utilized to efficiently detect the illegal stall, so that the labor costcan be reduced, the urban traffic management order can be maintained, real-time reference information can be provided for urban supervision departments, the management is convenient, the stall management efficiency is effectively improved, and the problem of disordered stall arrangement is relieved.