Patent ID: 6720560
Filing Date: 2004-04-13
Classification: H04N

Abstract:
A method for generating a digital representation of an image, comprising:(a) applying visible and infrared light to an image storing medium which includes the image; (b) directing said visible and infrared light which is reflected from or transmitted through said image storing medium to a reflective surface, wherein said visible light is reflected by said reflective surface towards a first sensor and said infrared light is transmitted through said reflective surface towards a second sensor; (c) detecting said visible light which is reflected from or transmitted through said image storing medium at said first sensor in order to provide a first image signal; and (d) detecting said infrared light which is reflected from or transmitted through said image storing medium at said second sensor in order to provide a second image signal; whereby said second image signal may be used to modify said first image signal to generate a modified digital representation of said image; and wherein the optical distance between said image storing medium and said first sensor is different from the optical distance between said image storing medium and said second sensor.