Image monitoring method and system based on computer vision technology

The invention is suitable for the technical field of image monitoring and identification, and provides an image monitoring method and system based on a computer vision technology. The system comprises a commodity acquisition module, a result comparison module, an abnormity comparison module and a result output module. According to the method, the types, the areas and the number of commodities on each layer can be accurately recognized by collecting longitudinal and transverse images in the vending machine and combining an image recognition algorithm. Once the user takes away the commodity and closes the cabinet door, the system can immediately acquire the latest transverse image, compare the latest transverse image with the previous image, identify the taken-away commodity and record the commodity. According to the method, whether the commodity is put back to the original position or not can be judged by comparing the acquired transverse images in real time, so that the purchasing and putting-back operation o