According to one embodiment, a code symbol reading unit (first reading unit) reads a barcode (code symbol) attached to a commodity from images of the commodity captured by an image control unit (imaging unit) using a first camera, a second camera, and a third camera. An electronic watermark reading unit (second reading unit) reads an electronic watermark attached to the commodity from the images. An object recognition unit (commodity recognition unit) recognizes the commodity from the images. Further, a commodity identification unit (commodity identification unit) identifies the commodity appearing in the images based on at least one of a reading result of the code symbol reading unit, a reading result of the electronic watermark reading unit, and a recognition result of the object recognition unit.