Patent ID: 7151259

Claim:
A method for producing a computed image, the method comprising the acts of: activating a lighting source during a first activation interval; activating a first subset of sensor elements of an opto-electronic sensor for a duration of the first activation interval; storing a first image produced by the activation of the first subset of sensor elements; activating a second subset of sensor elements of the opto-electronic sensor for a duration of a second activation interval; storing a second image produced by the activation of the second subset of sensor elements; processing the first and second stored images to produce the computed image; activating a third subset of sensor elements of the opto-electronic sensor for a duration of a third activation interval; and storing a third image produced by the activation of the third subset of sensor elements, wherein the computed image is produced by processing the first, second and third stored images, wherein lighting conditions are different during each of the first, second and third activation intervals.