APPARATUS AND METHOD FOR RECOGNIZING SUBCUTANEOUS VEIN PATTERN
First Claim
1. An apparatus for recognizing a subcutaneous vein pattern comprising:
- a light illuminator having an NIR (near infrared light) emitting device;
an image acquisitor having a lenz and an image sensor which converts light reflected from subcutaneous vein into an image signal;
a microprocessor which adjusts an illuminating intensity of the light illuminator and a light receiving sensitivity of the image acquisitor according to an illuminance estimated from the image signal; and
a displayer which display image signals received from the microprocessor.
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Accused Products
Abstract
The present invention relates to an apparatus and a method for recognizing a subcutaneous vein pattern. More particularly, the present invention is directed to an apparatus for recognizing a subcutaneous vein pattern comprising: a light illuminator having an NIR (near infrared light) emitting device; an image acquisitor having a lens and an image sensor which converts light reflected from subcutaneous vein into an image signal; a microprocessor which adjusts an illuminating intensity of the light illuminator and a light receiving sensitivity of the image acquisitor according to an illuminance estimated from the image signal; and a displayer which display image signals received from the microprocessor.
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Citations
31 Claims
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1. An apparatus for recognizing a subcutaneous vein pattern comprising:
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a light illuminator having an NIR (near infrared light) emitting device; an image acquisitor having a lenz and an image sensor which converts light reflected from subcutaneous vein into an image signal; a microprocessor which adjusts an illuminating intensity of the light illuminator and a light receiving sensitivity of the image acquisitor according to an illuminance estimated from the image signal; and a displayer which display image signals received from the microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for recognizing a subcutaneous vein pattern for user identification comprising:
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a data base in which a subcutaneous vein pattern is stored; a light illuminator having an NIR light emitting device; an image acquisitor having a lenz and an image sensor which converts light reflected from a skin and a hypodermic tissue into an image signal; and a microprocessor which adjusts an illuminating intensity of said light illuminator and a light receiving sensitivity of said image acquisitor according to an illuminance estimated from the image signal which said image acquisitor obtain, and identifies said user by comparing said image signal with a subcutaneous vein pattern stored in said data base. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for recognizing a face comprising:
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a data base in which image data for a face are stored; a light illuminator having an NIR light emitting device and a visible light emitting device; an image acquisitor having a lenz and an image sensor which converts light reflected from a face skin and a hypodermic tissue into an image signal; and a microprocessor which adjusts an illuminating intensity of said light illuminator and a light receiving sensitivity of said image acquisitor according to an illuminance estimated from the image signal, and identifies a user by comparing said image signal with image data for a face stored in said data base. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A method for recognizing a subcutaneous vein pattern comprising:
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i) illuminating skin with NIR; ii) converting NIR reflected from skin and a hypodermic tissue, into image signal by using an image sensor; iii) adjusting an illuminating intensity of the NIR or a light receiving sensitivity of said image sensor, according to an illuminance estimated from the image signal; and iv) converting reflected NIR after illuminating the skin with NIR of which illuminating intensity was adjusted at said step iii) into image signal by using said image sensor, or obtaining an image signal by using said image sensor of which the light receiving intensity was adjusted.
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30. A method for recognizing a subcutaneous vein pattern comprising:
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i) illuminating skin with NIR and visible light; ii) converting NIR and visible light reflected from skin and a hypodermic tissue, into image signal by using an image sensor; iii) adjusting an illuminating intensity of the NIR and visible light, or a light receiving sensitivity of said image sensor according to an illuminance estimated from the image signal; iv) converting reflected NIR and visible light after illuminating the skin with NIR and visible light of which illuminating intensity were adjusted at said step iii) into image signal by using said image sensor, or obtaining an image signal by using said image sensor of which the light receiving intensity was adjusted; and v) generating a subcutaneous vein pattern image by comparing the image signal obtained from visible light with the image signal obtained from NIR. - View Dependent Claims (31)
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Specification