Patent ID: 8101912

Claim:
An image-taking apparatus comprising: a processor; an image-taking device configured to take an image of an object, the object having a first region, a second region, and a third region; at least one illumination light source configured to emit an illumination ray; a memory device storing instructions which when executed by the processor, cause the processor, in cooperation with the image-taking device, the at least one illumination light source, and the memory device, to: (a) at a first point in time: (i) emit the illumination light ray towards the first region and the second region, wherein the illumination light ray is not illuminated towards the third region; and (ii) cause the image-taking device to take a first image of the object; (b) at a second, different point in time: (i) emit the illumination light ray towards the first region and the third region, wherein the illumination light ray is not illuminated towards the second region; and (ii) cause the image-taking device to take a second image of the object.