摘要: A system, method and computer program product for maintaining shelf inventory data on a shelf. The system includes a camera for capturing shelf images of items on the shelf. An inventory database stores a product name, type, barcode, image and inventory data. An image-count correlation database stores historical product inventory images and product shelf inventory counts associated with the products in the historical images which are read from the product inventory database. A computer processor segments the shelf images into product inventory images, matches the inventory images with the historical images, and updates the shelf inventory data in the inventory database based on the product shelf inventory counts associated with the matched historical images in the image-count correlation database.