KR100478856B1 - Biometric Apparatus and Method for Biometrical Detection Using the Same - Google Patents

Abstract

The present invention compares each blood vessel distribution data and the three-dimensional scanning of the shape of the ear present in both ears with the personal data recorded in the database, thereby minimizing the error to enable the identification of the individual biometric apparatus and It relates to a method for recognizing a living body using the same. Biometric recognition device of the present invention is a cover form that can cover the ear recognition unit provided with a three-dimensional imaging device, a transmission scanning device and a data switching device therein; A computer with a built-in database, image comparator and analysis algorithm; A result display unit provided with a data conversion device and a liquid crystal panel; A data transmission line provided between the tooth recognition unit and the computer; And a result transmission line provided between the computer and the result display unit. According to the present invention, since the error probability can be drastically reduced compared to the conventional method, it can be widely used in the development of products requiring biometrics.

Description

Biometric Apparatus and Method for Biometrical Detection Using the Same}

The present invention relates to a biometric device using the ear and a biometric method using the same. More specifically, the present invention compares individual blood vessel distribution data present in both ears and data of three-dimensional scanning of the shape of the ear with personal data recorded in the database, thereby minimizing errors to enable individual identification. One biometric device and a method for recognizing a living body using the same.

Currently, the access control system for security and manpower management that is used is the practical use of a card key system using a magnetic card, a card key system using a high frequency signal, and a relatively expensive system using a smart card having its own information storage capability. Fingerprint recognition systems and iris recognition systems are being applied for access control systems requiring high security, and personal recognition systems using face shapes have been developed.

Korean Patent No. 130962 discloses a technique for extracting a feature point of a face image and using it for individual recognition. However, the feature point extracted from a face has a disadvantage in that an error is large in comparing face images between individuals. -58362 discloses a user recognition method incorporating face recognition and speaker recognition, but has a disadvantage in that a method of searching for data of a face stored in a database using the recognized face data has a large error. In Korean Laid-Open Publication No. 98-75813, a method of identifying an individual by recognizing a three-dimensional shape of a hand is disclosed. However, the three-dimensional shape of the hand has a disadvantage in that the personal identification is large. In Korean Patent No. 259475, a vein distribution pattern of the back of a hand is disclosed. By using, a method of identifying an individual is disclosed. In the case of scanning, the difference in the degree of protrusion of the veins present in the hand on the skin is severe, and the degree of protrusion may change for each individual, which makes it difficult to extract the exact personal identifier, Korean Patent Publication No. 01-2097 Discloses a method of identifying an individual by using skin color data and facial photographing data recorded using an automatic motion tracking device, but skin color is not utilized for individual identification, and facial data captured using an automatic motion tracking device is described. It is difficult to compare with personal face data, so it is very unlikely to be put to practical use. Korean Patent Publication No. 01-19345 discloses voice, facial image signal and fingerprint recognition of an accessor, and analyzes these data in combination. Although a method of identifying an individual is disclosed, the time required for the recognition of the individual is enormous, and the fingerprint recognition result is displayed. As it is only a technology for checking audio and video data, there is a drawback that the personal identification error is not significantly different compared to the case where only fingerprint recognition is used, compared to the installation cost and inspection time of the equipment, and Korean Utility Model Registration No. 205079 The arc discloses a device capable of diagnosing a disease state of each body part by photographing an individual's iris, but has a disadvantage in that the results diagnosed through the iris cannot be directly applied to an individual's recognition.

Therefore, the need to overcome the above disadvantages to minimize the identification error, while developing a biometric technology that can reduce the time required for identification has emerged constantly.

Accordingly, the present inventors have diligently researched to develop a biometric technique that can reduce the time required for identification while minimizing the identification error. As a result, when using three-dimensional images of both ears and blood vessel patterns distributed in the ears, Minimizing the identification error of the, confirming that it can shorten the time required for identification, it has been completed the present invention.

After all, the main object of the present invention is to provide a biometric device using a three-dimensional image of the ear and the blood vessel distribution pattern of the ear.

Another object of the present invention is to provide a method for identifying an individual using the device.

Biometric recognition device of the present invention is a cover shape that can cover the ear, a tooth recognition unit provided with a three-dimensional imaging device, a transmission scanning device and a data switching device therein; The 3D image and blood vessel distribution data of the ear are received from the tooth recognition unit, the 3D image and blood vessel distribution data of the ear are stored in an embedded database, and the identity is confirmed through the built-in image comparison device and analysis algorithm. A computer performing the analysis; A result display unit which receives an analysis result from the computer and displays the result through an integrated data conversion device and a liquid crystal panel; A data transmission line connecting the tooth recognition unit and the computer to transfer the three-dimensional image and blood vessel distribution data of the ear from the tooth recognition unit to the computer; And a result transmission line connecting the computer and the result display unit to transmit analysis result data from the computer to the result display unit.

Hereinafter, the configuration of the biometric device of the present invention will be described in more detail.

The biometric device of the present invention is composed of a tooth recognition unit, a computer, a data transmission line, a result transmission line and a result display unit. A photographing device, a transmission scanning device, and a data switching device are provided. The computer includes an image comparator for comparing images transmitted from the recognition unit through a data transmission line, a database and an image storing personal ear image data. A comparison result analysis algorithm is built in, and a data transmission line is provided between the tooth recognition unit and the computer to transmit the ear shape and blood vessel distribution data recognized by the tooth recognition unit to the computer. A result transmission line is provided between the computer and the result display unit to display the result data analyzed by the computer. Transmitted, and the results display unit is provided with a liquid crystal panel and the data conversion unit.

The present inventors have found that in order to minimize the recognition error using the personal recognition device, the individual difference can be clearly distinguished when the ear is used. That is, since the distribution of blood vessels in the ear is extremely individual, the image data of each individual's blood vessels is built into a database, and when it is used, the newly recognized image data and the image data stored in the database are compared and analyzed. It was found that the owner of the image data could be recognized. However, since the probability of error is increased when the jewelry is attached to the ear, in order to reduce the error, the ear-shaped three-dimensional image is scanned, databased as a data, and the newly recognized ear-shaped three-dimensional image data. Compared with and analyzed, the error that can occur when searching only blood vessel distribution is reduced.

For the above invention, a method of detecting an ear vessel distribution image and a method of detecting an ear shape three-dimensional image must first be developed, and then a search and analysis algorithm must be established in a database.

According to one embodiment of the present invention, in order to detect the blood vessel distribution image of the ear, the light is irradiated to one side of the ear, and the light transmitted through the ear from the other side of the ear to detect the blood vessel distribution image of the ear. To this end, the transmission scanning device provided in the tooth recognition unit is preferably equipped with a light source and a recognition sensor with the ears interposed therebetween. At this time, the light to be used is harmless to the human body, it is preferable to have a wavelength of the region that can transmit the ear, more preferably in the visible light region having a wavelength range of 380 to 770nm or infrared rays having a wavelength of 950nm or more Use the light of the realm.

In addition, in order to detect a three-dimensional image in the form of an ear, light or radio waves having a long wavelength are irradiated to the ear in various directions, and the reflected wave reflected from the ear is detected and a combination thereof is used to detect the three-dimensional image in the form of an ear. To this end, the three-dimensional imaging apparatus provided in the ear recognition unit includes a plurality of detection devices that detect light or radio waves of long wavelengths reflected from the ears on the inner surface of the ear recognition unit. It is. At this time, since the light or radio waves used are harmless to the human body and should be absorbed by the skin of the ear or reflected without passing through the ear, it is preferable to use ultrasonic waves having a frequency of 20 kHz to 20 GHz.

According to another embodiment of the present invention, the same type of device may be used as the device for detecting the blood vessel distribution image of the ear and the device for detecting the three-dimensional image in the form of the ear. That is, when detecting the blood vessel distribution image of the ear by using one type of device that can be irradiated by varying the wavelength of light according to the purpose, the image data is detected by irradiating light with a relatively short wavelength and transmitting the ear When detecting a three-dimensional image in the form of an ear, light of a relatively long wavelength is irradiated, and the image data is detected by reflecting the light without passing through the ear.

Meanwhile, in order to improve the reliability of biometrics, one person's left and right ears may be examined. That is, by storing the image data of the individual, when constructing a database, the image data of the left ear and the image of the right ear are included together to improve the reliability of identification when identifying the individual. For example, biometrics may be performed using different ears, and images of two ears may be detected and recognized at all times, or an image of one ear may be normally detected, and an error may be detected if an error occurs.

For this method, one or two tooth recognition units may be used. In case of using one tooth recognition unit, an additional display device capable of selecting the left or the right side is provided for comparative analysis of each image. In the case of using two different recognition units, the left and right sides of each recognition unit should be displayed to prevent the occurrence of errors in the comparative analysis of the images.

In addition, when using two (2) recognition unit, it is also possible to pursue the convenience of use by connecting the two recognition unit, the connection method is not particularly limited, but in the form of headphones using a flexible hard material The recognition unit may be connected, or the two recognition units may be connected in the form of a hat provided at the position of the earpick.

In the above-described method, an individual's ear image is detected and then transmitted to a database, and compared and analyzed with pre-stored image data, thereby recognizing the individual. Direct comparisons can be used one by one, or image data can be simplified and compared. Direct comparison of the overall image is inefficient because it may take too much time. In order to overcome this problem, a method of simplifying an image to have characteristics of each image and comparing it with stored data is developed and applied, or a method of developing and applying an algorithm that digitizes image data and compares it with stored data can be used. Can be.

For example, the algorithm for simplifying the shape of the ear may use a method of converting a three-dimensional image into a two-dimensional image so that it can be easily compared with a data stored in the form of a two-dimensional image.

As another example, an algorithm to simplify the vascular image of the ear may use the following method: When storing an individual's ear image in a database, the three-dimensional image of the ear is stored, thus storing an ear-shaped image in a three-dimensional coordinate system. In addition, the vessel position is also stored as the position of the three-dimensional coordinate system. Subsequently, when the ear image is scanned in a two-dimensional plane, there are blood vessels displayed relatively dark and blood vessels displayed relatively dark according to the three-dimensional position of blood vessels. Then, by quantifying the degree of contrast of the area where each blood vessel is located, it is possible to simplify the image so as to have the characteristics of the ear vessel image of each individual.

In addition, as a method for quantifying the blood vessel image data of the ear, a plan view of arrangement of blood vessels of the ear is created in a two-dimensional coordinate system, and a plurality of specific regions (for example, a region in which only blood vessels exist, and a blood vessel exists in a part) in the plan view Areas, areas in which blood vessels do not exist, etc.), and a method of quantifying the difference in relative shading according to each part within the designated area can be used. More specifically, by specifying a region where blood vessels exist in a part and setting a two-dimensional coordinate system within the designated region, the degree of contrast in each coordinate system can be displayed relatively. That is, the area where the blood vessel is located will be darker than the area where the blood vessel is not located, and even if the blood vessel is located the same, the distance located relatively far from the vessel wall will be darker than the region located closer to the direction of the blood vessel wall. . In this case, the intensity of light and dark of each part can be quantified as a shadow ratio, with the brightness of the part where blood vessels are not distributed at all as a reference point.

When comparing the data digitized by the above-described method, a method of mechanically comparing data in a certain area may be used, or may be compared while changing the data area to be compared. That is, when receiving an ear image from an individual, in order to shorten an identification time, a method of selectively receiving data of a predetermined region, quantifying and comparing it with a database may be used, and to improve the reliability of personal identification. For example, it may be possible to receive data from random parts, quantify it, and compare it with a database, which can be flexibly operated according to the user's position.

In addition, when compared with the above method, it is possible to diversify the analysis method. In other words, by comparing and analyzing all the digitized images of a certain number, an identification result may be displayed. First, by comparing a certain number of digitized images, if there is no abnormality, the comparison is terminated and the identification result is displayed. If so, additionally, the number of digitized images can be compared, the results analyzed, and the analysis results displayed. In the case of personally injuring the ear, if the above-mentioned method is applied, the result will be displayed in the result display unit in the former case unconditionally, but in the latter case, the result identified based on the analyzed result will be displayed. You can also mark

Hereinafter, the operation and effects of the biometric device of the present invention will be described in detail.

The biometric device of the present invention can detect a shape image of an ear using a three-dimensional imaging apparatus provided in a tooth recognition unit, and detect a blood vessel distribution image of an ear using a transmission scanning device. The image data is converted into an electrical signal by a data conversion device provided in the tooth recognition unit. The converted electrical signal is transmitted to the database through the data transmission line, and the database randomly designates a portion of the image among the transmitted signals, digitizes this portion, and compares and analyzes the data stored in the database. The analyzed result is transmitted to the result display unit through the result transmission line, and the electrical signal is displayed on the liquid crystal panel provided in the result display unit through the data conversion device provided in the result display unit.

Accordingly, an embodiment of the present invention provides a method of identifying an individual using the biometric device. That is, a method of identifying an individual using the biometric device may include contacting the ear with the ear recognition unit, and obtaining blood vessel distribution image data of the ear and three-dimensional image data in the form of the ear; Converting the obtained image data into an electrical signal and transmitting it to a database through a data transmission line; Retrieving and analyzing the transmitted data from the data stored in the database; And converting the analysis result into an electrical signal, and then transmitting the result to the result display unit through a result transmission line, and displaying the result on the liquid crystal panel: when obtaining the blood vessel distribution image data of the ear, 380 to 770 nm. It is preferable to use the light in the visible region having a wavelength range of or the light in the infrared region having a wavelength of 950 nm or more, and when obtaining three-dimensional image data in the form of an ear, it is preferable to use ultrasonic waves having a frequency of 20 kHz to 20 GHz. In addition, by using one type of device that can be irradiated by varying the wavelength of light according to the purpose, it is also possible to detect an apparatus for detecting blood vessel distribution image of the ear and a three-dimensional image in the form of the ear. Also, the left ear, the right ear, or both ears may be used to obtain blood vessel distribution image data of the ear and three-dimensional image data of the ear shape, and one or two tooth recognition units may be used. Iii) In case of using the recognition unit, the two recognition units may be connected for the convenience of use. However, the connection method is not particularly limited, but the two recognition units may be connected in the form of headphones using a flexible hard material. The two recognition units may be connected in the form of a hat provided at the position of the earpick.

As described and demonstrated in detail above, the present invention compares individual blood vessel distribution data present in both ears and data of three-dimensional scanning of the shape of the ear with personal data recorded in a database, thereby minimizing an error to identify an individual. Provided is a biometric device enabling the present invention and a method for recognizing a living body using the same. Biometric recognition device of the present invention is a cover form that can cover the ear recognition unit provided with a three-dimensional imaging device, a transmission scanning device and a data switching device therein; A computer with a built-in database, image comparator and analysis algorithm; A result display unit provided with a data conversion device and a liquid crystal panel; A data transmission line provided between the tooth recognition unit and the computer; And a result transmission line provided between the computer and the result display unit. According to the present invention, since the error probability can be drastically reduced compared to the conventional method, it can be widely used in the development of products requiring biometrics.

Claims (12)

(Iii) a tooth recognition unit having a three-dimensional image photographing apparatus, a transmission scanning apparatus, and a data switching apparatus therein as a lid covering the ear; (Ii) receiving the 3D image and blood vessel distribution data of the ear from the tooth recognition unit, storing the 3D image and blood vessel distribution data of the ear in an embedded database, and using the built-in image comparison device and analysis algorithm A computer performing identity verification analysis; (Iii) a result display unit which receives the analysis result from the computer and displays the result through the built-in data conversion device and the liquid crystal panel; (Iii) a data transmission line connecting the tooth recognition unit and the computer to transfer the three-dimensional image and blood vessel distribution data of the ear from the tooth recognition unit to the computer; And, (Iii) a biometric device comprising a result transmission line connecting the computer and the result display unit to transmit analysis result data from the computer to the result display unit. The method of claim 1, Transmission scanning device has visible light having a wavelength range of 380 to 770 nm And a light source for generating light in the region Biometric device. The method of claim 1, The 3D imaging apparatus uses ultrasonic waves having a frequency of 20 kHz to 20 GHz. Characterized in that it comprises a device for generating Biometric device. The method of claim 1, Characteristic recognition unit is characterized in that one or two Biometric device. The method of claim 4, wherein If you use two tooth recognition parts, you can By connecting the two recognition unit in the form of headphones using Biometric device. The method of claim 4, wherein When two tooth recognition units are used, the two recognition units are located at the position of the ear canal. Characterized in that connecting in the form of a hat provided Biometric device. delete delete delete delete delete The method of claim 1, The transmission scanning device includes a light source for generating light in an infrared region having a wavelength region of 950 nm. Biometric device.