JPH0916767A - Fingerprint collating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To identify a person, for which the groove of fingerprint is shallow or it is difficult to read a fingerprint because fat on the tip of a finger is a little, by defining information concerning the finger as collation conditions in addition to fingerprint information and identifying the individual, based on these collation conditions. SOLUTION: This device is composed of a finger placing part 1, personal information holding part 2A, collation part 3, guide message display part 4 and ten key part 5. The personal information holding part 2A holds a previously registered password number, fingerprint information of individual and finger form information. When registering the fingerprint information, concerning the person for whose fingerprint can not be read because the groove of fingerprint is shallow or the fat of finger is a little, for example, the finger form information such as the width or roundness of finger is registered in place of fingerprint information. In identification, the finger form information is defined as the collation conditions. Therefore, the individual can be identified without noticing his own finger print can be read or not even for the person of a collating person and security is not damaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fingerprint collation device for identifying an individual, for example, for entering / leaving a room in a building and for permitting access to a computer terminal.

[0002]

2. Description of the Related Art A conventional fingerprint collation device will be described with reference to FIGS. FIG. 10 is a diagram showing a configuration example of a conventional fingerprint matching device. Further, FIG. 11 is a diagram showing a configuration example of data held in the fingerprint information holding unit of FIG.

As shown in FIG. 10, the conventional fingerprint collation apparatus comprises a finger rest portion 1, a fingerprint information holding portion 2, a collation portion 3, a guide message display portion 4, and a ten-key portion 5. There is. The collation unit 3 is composed of, for example, a CPU, and the fingerprint information holding unit 2 is composed of, for example, an appropriate memory.

As shown in FIG. 11, the fingerprint information holding unit 2
Is a pre-registered password number (001, 12345, 7
777 ...) and personal fingerprint information (XXXXXXX ...
・) And hold.

The matching method is as follows. First, the matching unit 3 selects fingerprint information that matches the password entered from the ten-key unit 5 from the fingerprint information of a plurality of individuals held in the fingerprint information holding unit 2. Next, the fingerprint information of the individual read by the finger placement unit 1 and the fingerprint information holding unit 2
The fingerprint information selected from among them is collated, and if they match, collation is OK.

At the time of the above operation, a message to the user, such as "please enter your password", "put your finger", "verify OK", etc., is displayed on the guide message display section 4. .

The characteristic of this fingerprint collating apparatus is that different fingerprints are used for each individual and used as information for different identification. Since the fingerprint is a part of the human body, for example, I
It cannot be used by others like a D card and has high security. Further, the device is smaller than other personal identification devices such as a palm shape determination device and a retina determination device based on human body characteristics.

[0008]

In the conventional fingerprint collating apparatus as described above, since the fingerprint of an individual's fingertip is used as collation information, a person who has a congenital or acquired shallow fingerprint groove,
Alternatively, since it is difficult to read the fingerprint information of a person who has little oil on the fingertip, there is a problem that there is a person whose personal identification cannot be determined from the fingerprint information. Further, with respect to the above-mentioned persons whose fingerprints cannot be discriminated, there is a problem that the security is remarkably lowered because the person is discriminated only by the identification number.

The present invention has been made to solve the above-mentioned problems, and in addition to fingerprint information, the shape of the fingertip width, length, and roundness, and the characteristics of the first joint are added as individual identification information. Therefore, it is an object of the present invention to provide a fingerprint collation device that enables identification of a person having a shallow fingerprint groove or a fingertip having a small amount of oil and making it difficult to read a fingerprint.

[0010]

A fingerprint collation apparatus according to the present invention includes a personal information holding unit for holding fingerprint information and information about a finger other than the fingerprint information, and a collation condition for the information about the finger in addition to the fingerprint information. And a collation unit for identifying an individual based on these collation conditions.

Further, in the fingerprint collation device according to the present invention, the collation unit performs personal identification only for the person who can normally read the fingerprint by using the fingerprint information, and for the person who cannot read the fingerprint, The information about the finger is used for personal identification.

Further, in the fingerprint collating apparatus according to the present invention, the information regarding the finger is the shape information of the finger.

Further, in the fingerprint collating apparatus according to the present invention, the personal information holding unit further includes a password number, and the collation unit determines that the held password number matches the input password number. A collation process is performed.

Further, in the fingerprint collating apparatus according to the present invention, the information regarding the finger is a characteristic of the first joint of the finger.

Further, in the fingerprint collation apparatus according to the present invention, the personal information holding unit further includes a password number, and the collation unit determines that the input password number matches the held password number. A collation process is performed.

Further, in the fingerprint collation device according to the present invention, the collation unit performs personal identification with two or more of the fingerprint information and the plurality of pieces of information regarding the finger, regardless of whether the fingerprint can be read or not. It is a thing.

Further, in the fingerprint collating apparatus according to the present invention, the plurality of pieces of information regarding the finger are the shape information of the finger and the characteristics of the first joint of the finger.

Further, the fingerprint collation device according to the present invention is
The personal information holding unit further includes a password, and the matching unit performs the matching process when the held password and the input password match.

[0019]

In the fingerprint collating apparatus according to the present invention, the personal information holding unit that holds the fingerprint information and the information about the finger other than the fingerprint information and the fingerprint information and the information about the finger are used as the matching conditions. Since it is provided with a collating unit for identifying an individual based on the above, it is possible to identify an individual whose fingerprint is difficult to read, and perform individual identification with high security.

Further, in the fingerprint collation device according to the present invention, the collation unit performs personal identification only for the person who can normally read the fingerprint by the fingerprint information, and for the person who cannot read the fingerprint. Since personal identification is performed using the information about the finger, it is possible to personally identify a person whose fingerprint is difficult to read, and personal identification with high security can be performed. In addition, the device can be downsized as compared with other devices that identify an individual based on the characteristics of the human body.

Further, in the fingerprint collating apparatus according to the present invention, since the information regarding the finger is the shape information of the finger, it is possible to identify a person who is difficult to read a fingerprint.

Further, in the fingerprint collating apparatus according to the present invention, the personal information holding section further includes a password.
Since the collation unit performs the collation process when the stored secret number and the input secret number match, personal identification with high security can be performed.

Further, in the fingerprint collating apparatus according to the present invention, since the information regarding the finger is the characteristic of the first joint of the finger, it is possible to personally identify a person whose fingerprint is difficult to read. .

Further, in the fingerprint collating apparatus according to the present invention, the personal information holding section further includes a password.
Since the collation unit performs the collation process when the stored secret number and the input secret number match, personal identification with high security can be performed.

Further, in the fingerprint collation device according to the present invention, the collation unit performs personal identification with two or more of the fingerprint information and the plurality of pieces of information regarding the finger, regardless of whether the fingerprint can be read or not. Since this is done, it is possible to identify a person whose fingerprint is difficult to read, and to perform person identification with high security. In addition, the device can be downsized as compared with other devices that identify an individual based on the characteristics of the human body.

Further, in the fingerprint collation apparatus according to the present invention, since the plurality of pieces of information regarding the finger are the shape information of the finger and the characteristics of the first joint of the finger, the personal identification of the person who is difficult to read the fingerprint. Can be possible.

Further, in the fingerprint collating apparatus according to the present invention, when the personal information holding unit further includes a password, and the collating unit matches the held password and the input password. Since the matching process is performed,
Individual identification can be performed with high security.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. In this embodiment, a person who can read a fingerprint normally is personally identified only by fingerprint information, and a person who cannot read a fingerprint is personally identified by the shape of a finger instead of the fingerprint. .

The first embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIGS. 3 and 4.

FIG. 1 is a diagram showing the configuration of the first embodiment of the present invention. Further, FIG. 2 is a diagram showing a configuration example of data held in the personal information holding unit of FIG. FIG. 3 is a diagram showing an example of reading the width and roundness characteristic points of the finger according to the first embodiment. Further, FIG. 4 is a flowchart showing the operation of the first embodiment.

As shown in FIG. 1, the fingerprint collation apparatus according to the first embodiment has a finger placement unit 1, a personal information holding unit 2A, a collation unit 3, a guide message display unit 4, and a ten-key unit 5.
It is composed of The matching unit 3 is, for example, a CPU
The personal information holding unit 2A is composed of, for example, an appropriate memory.

As shown in FIG. 2, the personal information holding unit 2A
Is a pre-registered memory number (001, 12346, 7
777, 987654) and personal fingerprint information (XXXX
XX, none, XXXXXX, XXXXXXX) and finger shape information (none, YYYYYYYY, none, none) are held.

In FIG. 3, A is the width of the finger, B is the width between the tip of the finger and the side surface of the finger, and C is the distance from the tip of the finger at a position 1/2 of B. The roundness of the finger is the width B between the tip of the finger and the side of the finger.
The distance C from the tip at half the position of is the feature point.

For a person whose fingerprint can be read normally, the collation is performed in the same manner as the conventional method (steps 10 to 1).
(7, 20 to 23), for example, when the fingerprint information is registered, for a person who cannot read the fingerprint because the groove of the fingerprint is shallow or the finger has little oil, the fingerprint information shown in FIG. The finger shape information C of width A and roundness is registered. And
At the time of identification, the finger shape information is used as a matching condition (steps 18 and 19).

In steps 10 to 12, the collation unit 3
Enters a recall number using the ten-key unit 5. It is checked whether or not the entered password number is in the personal information holding unit 2A, and if it is not present, the guide message display unit 4 displays "The password number is incorrect".

In steps 13 to 15, when the input memory number is OK, "Please place your finger" is displayed on the guide message display section 4. Next, the finger rest 1
The fingerprint of the finger placed on is read to determine whether the reading is OK.

In Steps 16 to 17, when the fingerprint reading is OK, the fingerprint of the finger placed on the finger rest 1 is read and collated with the fingerprint information corresponding to the input code number.

When the reading of the fingerprint is not OK in steps 18 to 19, the shape of the finger placed on the finger rest 1 is read and collated with the finger shape information corresponding to the input code number.

In steps 20 to 23, if the collation result is not OK, "Please place your finger again" is displayed on the guide message display portion 4 and the process returns to step 14. If the verification result is OK, the guide message display section 4 displays "Verification is OK".

According to this collation method, it is possible to perform personal identification of a person who cannot read a fingerprint by using the fingerprint collation device according to the first embodiment. In addition, a person who can read a fingerprint performs matching with fingerprint information as in the conventional case. Since the operability is exactly the same for both people, even the collator himself can identify an individual without being aware of whether his / her fingerprint can be read or not, which impairs security. There is no. Furthermore, since it becomes possible to identify a person who cannot be identified by the conventional method, security is improved. Since the conventional hardware can be used as it is, the collating device does not become large.

Embodiment 2 FIG. In this embodiment, for a person who can read a fingerprint normally, personal identification is performed only by fingerprint information, and for a person who cannot read a fingerprint, an individual is identified by the shape of the finger and the characteristics of the first joint instead of the fingerprint. This is a method of identifying.
In the first embodiment, for a person whose fingerprint cannot be read,
While only the shape of the finger is compared, this embodiment is a method of individually identifying both the shape of the finger and the characteristics of the first joint as the matching conditions.

The second embodiment of the present invention will be described with reference to FIGS. 5, 6 and 7. FIG. 5 shows the second embodiment.
It is a figure which shows the structural example of the data hold | maintained at the personal information holding part. FIG. 6 is a diagram showing an example of reading the characteristics of the first joint of the finger of the second embodiment. Further, FIG. 7 is a flowchart showing the operation of the second embodiment. The configuration of the second embodiment is similar to that of the first embodiment.

As shown in FIG. 5, the personal information holding unit 2A
Is a pre-registered memory number (001, 12346, 7
777, 987654) and personal fingerprint information (XXXX
XX, none, XXXXXX, XXXXXX, and finger shape information (none, YYYYYYYY, none, none) and first joint information (none, ZZZZZZZZ, none, none) are held.

In FIG. 6, D is the distance from the fingertip to the groove of the first joint. In the second embodiment, the cuts in the groove of the first joint of the finger and the distance from the fingertip to the groove are read as features.

For a person whose fingerprint can be normally read, the collation is performed in the same manner as in the conventional method (steps 30 to 3).
7, 40-43), when registering the fingerprint information, for example, for a person who cannot read the fingerprint because the groove of the fingerprint is shallow or the finger has little oil, the finger width A and roundness are used instead of the fingerprint information. The finger shape information C and the feature of the first joint of the finger are registered. Then, at the time of identification, the finger shape information and the first joint information are used as matching conditions (steps 38 and 39).

The method of reading the groove of the first joint is, for example,
Taking advantage of the fact that the groove of the first joint is deeper than that of a fingerprint, when the finger is horizontally sensed, the position where the light reflectance is highest is read as the position of the groove.

Compared with the first embodiment, this embodiment collates personal information under two collation conditions, so the collation conditions become more severe and the security is further enhanced. Other features are the same as those in the first embodiment.

Embodiment 3 FIG. In the present embodiment, when personal identification is performed, regardless of whether the fingerprint can be read or not, the fingerprint information and
The finger shape information and the three pieces of information of the first joint are collated, and collation is OK when two or more conditions match.

Third Embodiment of the Invention FIGS. 8 and 9
This will be described with reference to FIG. FIG. 8 is a diagram showing a configuration example of data held in the personal information holding unit of the third embodiment. Further, FIG. 9 is a flowchart showing the operation of the third embodiment. The configuration of the third embodiment is similar to that of the first embodiment.

As shown in FIG. 8, the personal information holding unit 2A
Is a pre-registered memory number (001, 12346, 7
777, 987654) and personal fingerprint information (XXXX
XX, none, XXXXXX, XXXXXX, and finger shape information (YYYYYYYY, YYYYYYYY, YYYYYY)
Y, YYYYYYY) and the first joint information (ZZZZZZZZ)
Z, ZZZZZZZZ, ZZZZZZZZ, ZZZZZZ
Z) and hold.

Compared to the above embodiments, this embodiment does not distinguish whether the fingerprints can be read or not, and collates all persons under the same conditions.

First, the collating unit 3 compares and collates the fingerprint information held in the personal information holding unit 2A with the read fingerprint information. When the collation is OK, for example, the collation OK counter is set to "1" (step). 55, 56). Next, the finger shape information is similarly compared and collated. When the collation is OK, the collation OK counter is set to "2" (steps 57 and 58). Further, the first joint information is similarly compared and collated. When the collation is OK, the collation OK counter is set to "3" (step 59,
60). If the verification is not OK at each verification, the verification OK counter is not incremented.
When the verification OK counter is 2 or more, the verification O
The process ends as K (steps 61, 63, 64).

In the personal identification of the person who can read the fingerprint, information other than the fingerprint information is used as the matching condition.
Compared to the fingerprint information alone, the matching conditions become stricter and the security is further enhanced. Also, although the fingerprint could be read at the time of registration, if the fingerprint becomes too thin to read, or if the fingerprint information on the fingertip does not match the fingerprint information, the fingerprint shape information is not used. The individual can be identified by collating the two pieces of information of the first joint.

[0054]

As described above, the fingerprint collating apparatus according to the present invention collates the fingerprint information and the information on the finger in addition to the personal information holding unit for holding the information on the finger other than the fingerprint information. As a condition is provided with a collating unit for identifying an individual on the basis of these collating conditions, it is possible to personally identify a person whose fingerprint is difficult to read, and perform personal identification with high security. Has the effect.

Further, in the fingerprint collating apparatus according to the present invention, as described above, the collating unit performs personal identification only for the person who can normally read the fingerprint, using only the fingerprint information,
Since the person who cannot read the fingerprint is personally identified by the information related to the finger, it is possible to personalize the person who is difficult to read the fingerprint, and personal identification with high security can be performed. . Further, there is an effect that the device can be downsized as compared with other devices that identify an individual by the characteristics of the human body.

Further, in the fingerprint collating apparatus according to the present invention, as described above, since the information regarding the finger is the shape information of the finger, it is possible to personally identify a person whose fingerprint is difficult to read. It has the effect of being able to.

Further, in the fingerprint collating apparatus according to the present invention, as described above, the personal information holding unit further includes a password, and the collating unit determines that the held password and the input password are the same. Since the collation processing is performed when they match, there is an effect that personal identification can be performed with high security.

Further, as described above, the fingerprint collating apparatus according to the present invention uses the information about the finger as the characteristic of the first joint of the finger, so that it is possible to personally identify a person whose fingerprint is difficult to read. There is an effect that can be done.

Further, in the fingerprint collating apparatus according to the present invention, as described above, the personal information holding unit further includes the password, and the collating unit determines the held password and the input password. Since the collation processing is performed when they match, there is an effect that personal identification can be performed with high security.

Further, in the fingerprint collating apparatus according to the present invention, as described above, the collating unit irrespective of whether the fingerprint can be read or not, two or more of the fingerprint information and the plurality of pieces of information related to the finger. Since personal identification is performed by, personal identification of a person whose fingerprint is difficult to read can be performed, and personal identification with high security can be performed. Further, there is an effect that the device can be downsized as compared with other devices that identify an individual by the characteristics of the human body.

Further, as described above, in the fingerprint collating apparatus according to the present invention, since the plurality of pieces of information regarding the finger are the shape information of the finger and the characteristics of the first joint of the finger, it is difficult to read the fingerprint. The effect of enabling individual identification of a person is obtained.

Furthermore, the fingerprint collation device according to the present invention is
As described above, the personal information holding unit further includes a password number, and the collation unit performs the collation process when the stored password number and the input password number match, so high security is provided. This has the effect of enabling personal identification that maintains sex.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is a diagram showing data held in a personal information holding unit according to the first embodiment of the present invention.

FIG. 3 is a diagram showing finger shape information according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 5 is a diagram showing data held in a personal information holding unit according to the second embodiment of the present invention.

FIG. 6 is a diagram showing first joint information according to the second embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 8 is a diagram showing data held in a personal information holding unit according to the third embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 10 is a diagram showing a configuration of a conventional fingerprint matching device.

FIG. 11 is a diagram showing data held in a fingerprint information holding unit of a conventional fingerprint matching device.

[Explanation of symbols]

1 finger rest part, 2A personal information holding part, 3 collating part, 4
Guide message display area, numeric keypad area.

Claims (9)

[Claims] 1. A personal information holding unit for holding fingerprint information and information about a finger other than the fingerprint information, and a collation for identifying an individual on the basis of these collating conditions, in addition to the fingerprint information, information about the finger. And a fingerprint collation device. 2. The collation unit performs personal identification only for the person who can normally read the fingerprint by the fingerprint information, and personal identification for the person who cannot read the fingerprint by the information about the finger. The fingerprint collation device according to claim 1, wherein 3. The fingerprint collation apparatus according to claim 2, wherein the information on the finger is shape information of the finger. 4. The personal information holding unit further includes a memory number, and the matching unit performs the matching process when the held memory number and the input memory number match. The fingerprint collation device according to claim 3. 5. The fingerprint collation apparatus according to claim 2, wherein the information about the finger is a characteristic of the first joint of the finger. 6. The personal information holding unit further includes a memory number, and the collation unit performs the collation processing when the stored memory number and the input memory number match. The fingerprint collation device according to claim 5. 7. The collation unit can read a fingerprint /
2. The fingerprint collation device according to claim 1, wherein the personal identification is performed using two or more of the fingerprint information and a plurality of pieces of information regarding the finger, regardless of whether or not it is impossible. 8. The fingerprint collation apparatus according to claim 7, wherein the plurality of pieces of information related to the finger are shape information of the finger and characteristics of the first joint of the finger. 9. The personal information holding unit further includes a memory number, and the matching unit performs the matching process when the held memory number and the input memory number match. The fingerprint collation device according to claim 8.