Personal identification device and method
AssigneeHitachi, Ltd.
InventorsNaoto MIURA, Akio Nagasaka, Takafumi Miyatake
Life of this patent
Estimating the term…
Abstract
A personal identification device including: an image pickup unit; a guide unit to set a finger to be imaged; a light source which emits light adapted to be transmitted through the set finger and incident on said image pickup unit; and an image operating unit which is adapted to generate a vein pattern for use in personal identification from an image picked up by said image pickup unit, wherein the image operating unit is adapted to detect a center of the veins from the image to generate the vein pattern.
Claims14
A personal identification device comprising:
- an image pickup unit;
- a guide unit to set a finger to be imaged;
- a light source which emits light adapted to be transmitted through the set finger and incident on said image pickup unit;
- and
- an image operating unit which is adapted to generate a vein pattern for use in personal identification, from an image picked up by said image pickup unit,
- wherein the image operating unit is adapted to detect a center of the veins from the image to generate the vein pattern.
A personal identification device comprising:
- an image pickup unit;
- a guide unit to set a finger to be imaged;
- a light source which emits light adapted to be transmitted through the set finger and incident on said image pickup unit;
- and
- an image operating unit which is adapted to generate a vein pattern from an image picked up by said image pickup unit and execute the personal identification using the generated vein pattern,
- wherein said image operating unit is adapted to detect a center of the veins from said picked-up image by detecting a bottom or a concave in a brightness value profile of the picked-up image to generate the vein pattern.
A personal identification device comprising:
- an image pickup unit;
- a guide unit to set a finger to be imaged;
- a light source which emits light adapted to be transmitted through the set finger and incident on said image pickup unit;
- and
- an image operating unit which is adapted to generate a vein pattern for use in personal identification from an image picked up by said image pickup unit,
- wherein the image operating unit is adapted to detect a contour of the set finger, calculates a width of the contour at a given position of said contour, and normalize the picked-up image based on a magnification determined by using the width of the contour.
Dependencies are inferred from the claim text.