Patent ID: 7535486

Claim:
A display control method for controlling a display of a displayed image based on a position of an apparatus provided with a first camera and a second camera which are in a known geometric relationship, said display control method comprising: capturing, by the first camera, a first image including an object with a known image feature; capturing, by the second camera, a second image including a scene in the vicinity of the object; extracting the image feature of the object from the first image; calculating a distance from the object to the apparatus and a direction of the apparatus viewed from the object, by comparing the extracted image feature of the object to the known image feature of the object; extracting an image feature of the second image from the second image; calculating a distance from the object to the apparatus and a direction of the apparatus viewed from the object, by comparing the extracted image feature of the second image to an image feature extracted from a past image which has been captured by the second camera; and controlling the display of the displayed image based on the distance and direction calculated based on the first image and the distance and direction calculated based on the second image.