1. An information acquisition and identification system comprising: image feature storage unit configured to store image feature of a textured pattern formed on a component or a product; extracting unit configured to extract an image of an information display body and an image of the textured pattern from an image including at least the information display body for displaying information on the component, the product, or a product including the component as its component and the textured pattern formed on the component or the products; acquiring unit configured to acquire information on the component or the products from the extracted image of the information display body; and identifying unit configured to identify the component, the product, or the product including the component as its component by matching image feature of the extracted image of the textured pattern with image feature stored in the image feature storage unit.