Patent ID: 8503795

Claim:
A store system comprising: a reading apparatus comprising an image acquiring circuit that acquires a plurality of images sequentially captured by an image capturing circuit and a product detection circuit that compares outlines extracted from the plurality of images and detects a first image of a product in an acquired image, of the plurality of images, based on detection of an image portion in which there is a change between the outlines, and an image output circuit that outputs the acquired image in response to detection of the first image of the product by the product detection circuit; a similar image detection circuit that detects a second image of a product that is similar to at least a portion of the acquired image which is output from the reading apparatus by referencing product management information in which information relating to sales registration of respective products and images of the respective products are associated with the respective products; and a sales registration apparatus that comprises a selection circuit that prompts for a selection instruction input in response to the similar image circuit detecting multiple images of products in respective multiple images ot the plurality ot images, a sales registration circuit that registers a sale of the product based on information relating to the sales registration for a product selected based on the selection instruction input, and an alerting circuit that alerts of an error in response to a determination that an image of a product that is similar to at least a portion of the acquired image is not detected by the similar image detection circuit.