Patent ID: 11954940
Assignee: NEC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method in accordance with claim 1 wherein the acquiring the first image and the acquiring the second image comprise acquiring a first set of images, the first set of images comprising the first image and the second image, the method further comprising acquiring at least a further set of images including:
acquiring a first one of the further set of images of the facial image illuminated with a third color different from the first and second colors; and
acquiring a second one of the further set of images of the facial image illuminated with a fourth color, wherein the fourth color is different from the first, second and third colors, and wherein the third color and the fourth color are selected in response to chrominance differential between a chrominance value of the third color and a chrominance value of the fourth color, and
wherein the determining if the facial image is consistent with the 3D structure comprises determining if the facial image is consistent with a 3D structure in response to a combination of the first, second, third and fourth images.