Patent ID: 9141843
Filing Date: 2015-09-22
Classification: G06K,G07C

Abstract:
1. A personal identification apparatus comprising: a light source to irradiate light to a finger from a side portion of the finger other than a palm side of the finger; an opening part to pass light transmitted through the finger from the light source; an image capture unit to capture transmitted light passed through the opening part, the image capture unit being positioned opposite the finger with respect to the opening part such that the palm side of the finger faces the image capture unit; and a shading part to shade the light irradiated from the light source to the palm side of the finger to be imaged, wherein a vein pattern of the finger is extracted from a transmitted light image of the finger captured by the image capture unit, and wherein the shading part is in a path of the light irradiated from the light source to the palm side of the finger to be imaged and limits the amount of light irradiated from the light source to the palm side of the finger which is to be imaged by the image capture unit to reduce a saturated region in the image captured by the image capture unit.