A system includes: an acquiring unit that acquires an image of an n-dimensional symbol; a first image capturing unit that captures an image of a random pattern on a surface of an object; a storing unit that stores the image of the n-dimensional symbol and a first image that is the image of the random pattern captured by the first image capturing unit in a manner that the images are associated with each other; a second image capturing unit that captures an image of a random pattern on a surface of an object; a matching unit that performs matching of the image captured by the second image capturing unit against the first image stored by the storing unit; and a displaying unit that displays the image of the n-dimensional symbol associated with the first image stored by the storing unit based on the result of the matching.