JPS61175867A - Fingerprint registering device - Google Patents

Abstract

PURPOSE:To enable a person who has fingers without characteristic fingerprint or fingers hard to fingerprint identification due to an injury, etc. to register by another finger, and enable the person to improve ability of individual identification by providing a characteristic parameter extracting section and a characteristic parameter memory. CONSTITUTION:In fingerprint registration, video signals inputted by a person who registers his fingerprints through fingerprint preparing sections 1-5 are A/D converted in a picture processing section 7 and inputted to a characteristic parameter extracting section 8 as data. The section 8 converts the data to characteristic parameter of the registered person and outputs. A comparator 9 compares characteristic parameters of five fingers, and outputs only one characteristic parameter of the largest value, and one of indicators 11-15 is lit up. The parameter is stored in a characteristic parameter memory 16 by operation of an address setting switch 17. By storing a characteristic parameter of a finger having the largest characteristic parameter out of five fingers, even a person who has a finger difficult to fingerprint identification can register by another finger, and thus ability of individual identification can be improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to personal identification.
The present invention relates to a fingerprint registration device in which fingerprint data is registered in advance in order to perform the i-printing process.

[Conventional technology]

One of the methods for determining the presence or absence of passers-by at the entrances and exits of specific areas that require special monitoring, such as computing centers, financial institutions, and nuclear power plants, is to compare fingerprints.

As an example of a device that automatically performs such fingerprint verification, there is a fingerprint recognition machine published by one company in the Weekly Joseki (No. 24 Ji9.31, August 1980), which uses the fingerprint of one finger in advance. It was a test to determine whether it matched the registered one or not.

[Problem that the invention seeks to solve]

In conventional fingerprint identification devices such as those mentioned above, the finger to be registered and read is predetermined, so if the finger has no distinctive characteristics or is difficult to identify due to an injury, the ability to identify individuals may be extremely poor. The present invention was made to solve the above-mentioned problem. To provide a fingerprint registration device which enables even a person to register a finger in place of the finger and which can greatly improve personal identification ability.

[Means for solving problems]

In the fingerprint registration device according to the present invention, the data creation means obtains fingerprint data of the same person's ridges, and the selection means selects fingerprint data ta suitable for personal identification from these fingerprint data.
While selecting and storing it in a storage means such as a memory, it is also possible to store it in a storage medium such as a memory. :The designated name corresponding to the fc fingerprint data is displayed on the full display means.

[Effect]

In this invention, from multiple fingerprint data of the same person,
For example, data suitable for personal identification, such as data with large characteristic parameters, is selected and registered, and the applicant is asked to tell which finger fingerprint has been registered using a display means, and from then on,
Try to use this finger to make the distinction.

〔Example〕

The figure is a block diagram showing the structure of an embodiment of the present invention, and (1) to (6) in the figure are all fingerprint data of the thumb, index finger, middle finger, ring finger, and little finger. A data creation unit (7) is a camera that takes a fingerprint and generates a video signal;
(8) is an image processing unit that converts the video signal from the camera into kA%D and then outputs the fingerprint lines as data; (8)
is a feature parameter extraction unit that converts fingerprint line data into characteristic parameters and outputs it; the camera (6), image processing unit (γ), and feature parameter extraction unit (8) constitute the bottom part of each fingerprint data. ing. In addition, (9) is a comparator that compares the feature parameters of the fingerprint data generator parts (1) to (5) and outputs the feature parameter with the largest value. t-
This is an adder that performs addition, and the feature parameters other than those corresponding to falling or one finger are essentially "0", so here we use OR.
The part that plays the role of a circuit is the fingerprint data creation unit (11 to (6)), and is a display that lights up only when data is output from the n1 comparator (9). m
t is a feature parameter memory in which the output data at the beginning of the addition is stored in order and the feature parameters of a large number of registrants are stored; t171 is a feature parameter memory in which the address of the feature parameter DIS+ in which the person who registers all fingerprints is stored is completely determined. This is an address setting switch for

In the fingerprint registration device configured as described above, when a person registering a fingerprint places the finger device in a position where it can be photographed by each camera (6) of the fingerprint data creation sections (1) to (6), the camera (6) f′1. The image processing unit (7) converts these video signals into νDK and outputs the fingerprint lines as data. The extraction unit (8) converts this fingerprint line data into the characteristic parameters of the registrant and outputs it.Thus, the fingerprint data creation units (1) to (6) output the thumb, index finger, index finger, etc. , the characteristic parameters of the little finger are output as fingerprint data.

Next, the comparator (9) compares the feature parameters of the five fingers and outputs only the feature parameter t with the largest value. As a result, the number of indicators corresponding to the finger with the largest characteristic parameter, ie, the number of indicators (from display to display), is lit for the registrant to see. Successful applicants will be identified using this finger from now on. On the other hand, the registrant who recognizes that the number n of the 1st display (2) to residence) lights up will use the memory to store the fingerprint data. When the address setting switch (b) is operated to specify all addresses of , the feature parameters output from the comparator (9) are stored at the address added by f'i1 in the feature parameter memory (to).

Note that this feature parameter memory α6) stores the feature parameters of many registrants. For example, the registrant may memorize the name and address where the feature parameters are stored, and place his/her finger on a fingerprint reader at the time of identification. Along with placing it in
Quick personal identification is performed by specifying the address using a numeric keypad or the like.

In this way, all the feature parameters of the finger with the largest feature parameter value among the five fingers are memorized.Even if a particular finger has no fingerprint features or is difficult to distinguish, Since the fingerprints of other fingers are automatically registered, it is difficult for conventional devices to distinguish the fingerprints, but even nine people can easily distinguish the fingerprints according to this embodiment.

Also, storing the characteristic parameter with the largest value among the five fingers not only makes it easier to identify fingerprints, but also greatly improves the ability to identify individuals.

Note that the present invention is not limited to the above embodiments,
For example, even if the following items (a) to (11) are modified and implemented, the same determination as described above is possible.

(a) In the above embodiment, the comparator (9) selected the largest feature parameter among the feature parameters added. You may choose one that will grow larger.
In short, all that is required is a selection means for comparing fingerprint data according to predetermined criteria and selecting fingerprint data suitable for personal identification.

(1)l Furthermore, the selection means may select a finger that has a fingerprint on it and that can be easily processed in one image.

(at The registration formula itself may visually determine which finger is appropriate and register it.

1 (11) Instead of the address setting switch, a (personal identification) card may be used, or a pair of a number and a characteristic parameter may be stored in the memory, and the data may be used to identify fingerprints. good.

(e) When identifying an individual using two or more fingers, it is sufficient to select characteristic parameters corresponding to the number of fingers and store them in the memory.

(fl In the above embodiment, five fingerprint data creation units are provided, but one fingerprint data creation unit sequentially obtains the characteristic parameters of the five fingers and then selects the appropriate one. Registration takes longer, but the cost of the device is lower.

(gl) This fingerprint registration device may be configured as a set with a fingerprint discrimination device.

The memory for storing fingerprint data such as characteristic parameters may be of a portable type such as a floppy disk or a cassette tape.

(1) The number set by the address setting switch and the number of the ID card may be made to correspond to each other, or may be made to match.

〔Effect of the invention〕

As explained above, according to the present invention, data suitable for personal identification is registered from multiple fingerprint data of the same person, and since it is possible to display all the fingerprints of which fingers have been registered, it is possible to Even people whose finger prints are difficult to distinguish can register all of their fingerprints in a suitable manner, and can also know the registered contents, thereby greatly improving personal identification ability.

[Brief explanation of drawings]

The figure is a block diagram showing the configuration of an embodiment of the present invention. (1) to (6) Two fingerprint data creation sections (6) Two cameras (7): Image processing section (81:
Feature parameter extraction section (9): Comparator Scream: Adder α sword ~ (151: Display Q6): Feature parameter memory (B) Near address setting switch

Claims (1)

[Scope of Claims] (1) Data creation means for obtaining fingerprint data that can be compared with each other by processing video signals obtained by capturing a plurality of fingerprints of the same person; a selection means for comparing in accordance with a standard and selecting fingerprint data suitable for personal identification; a storage means for storing the fingerprint data selected by the selection means; and a storage means for storing the fingerprint data selected by the selection means. 1. A fingerprint registration device comprising: display means for displaying a designation of fingerprint data. (2) The fingerprint registration device according to claim 1, wherein the data creation means outputs characteristic parameters as fingerprint data, and the selection means selects a characteristic parameter having a large value. (8) The data creation means outputs characteristic parameters as fingerprint data, and the selection means selects characteristic parameters having a large difference from characteristic parameters stored in the memory. Fingerprint registration device as described in section.