Patent ID: 7630002

Claim:
An interactive display system comprising: a display screen comprising one or more display layers; an illuminator positioned at a single location so as to illuminate one of the inner surface or outer surface of the display screen from the single location, the illuminator causing at least a first specular reflection that is detected by a first camera and a second specular reflection that is detected by a second camera; the first camera being positioned so as to view and capture a first image of at least a first area and a second area of the illuminated surface of the display screen, using light emitted from the illuminator, wherein the first image captured by the first camera includes: a first image portion that corresponds to the first area of the illuminated surface and that includes the first specular reflection that is caused by light from the illuminator, and a second image portion that corresponds to the second area of the illuminated surface and that is free from the first and second specular reflection caused by light from the illuminator; the second camera being positioned so as to view and capture a second image of at least the first area and the second area of the illuminated surface of the display screen, using light emitted from the illuminator, wherein the second image captured by the second camera includes: a third image portion that corresponds to the second area of the illuminated surface and that includes the second specular reflection that is caused by light from the illuminator, and a fourth image portion that corresponds to the first area of the illuminated surface and that is free from the first and second specular reflection caused by light from the illuminator; and an image merging mechanism configured to combine the first and second images from the first camera and from the second camera, respectively, in such a way that at least the first specular reflection is at least reduced in a merged image in comparison with the first specular reflection captured in the first image by the first camera.