JP4292011B2 - Imprint verification system - Google Patents
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- JP4292011B2 JP4292011B2 JP2003021391A JP2003021391A JP4292011B2 JP 4292011 B2 JP4292011 B2 JP 4292011B2 JP 2003021391 A JP2003021391 A JP 2003021391A JP 2003021391 A JP2003021391 A JP 2003021391A JP 4292011 B2 JP4292011 B2 JP 4292011B2
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Description
【０００１】
【発明の属する技術分野】
この発明は、印影を照合する印影照合システムに関するものである。
【０００２】
【従来の技術】
本人を確認する手段としては、実印から認印までレベル差はあるが、日本では印鑑が一般的に使用されている。しかしながら、印鑑は印影さえあれば偽造が容易であり、また、印鑑証明書など不正防止策があるといっても偽造・不正取得等の問題があり、印鑑の使用者が本人か否かの確認に問題がある。
【０００３】
また、電子印鑑等においても、印影とは別にシリアル番号等のセキュリティ情報を別に用意して電子印鑑の正当性をチェックするものがある（例えば、特許文献１参照）。しかし、これとてサーバ等を設置した大規模なシステムとして整合性をチェックする必要があり、印影そのものだけでは本人の印影か否かの確認ができない。
【０００４】
【特許文献１】
特開平１１−１４３９６９号公報
【０００５】
【発明が解決しようとする課題】
日本においては、いまだ印鑑による本人認証が主流であり、印鑑証明書等の発行などによるセキュリティ対策はあるものの、印鑑の偽造、証明書の不正取得、偽造等の問題は多く発生している。
【０００６】
この発明は上述した点に鑑みてなされたもので、印影に生体情報を埋め込むことにより、容易に印影から本人照合を行えるようにした印影照合システムを得ることを目的とする。
【０００７】
【課題を解決するための手段】
この発明に係る印影照合システムは、生体情報を読み取る生体情報読み取り部と、前記生体情報読み取り部により読み取られた生体情報の特徴を抽出する特徴情報抽出部と、前記特徴情報抽出部により抽出された特徴に応じた変位情報に基づいて印影の文字または文字を囲む囲み部分における直線部の傾きまたは曲率の少なくともいずれかを変化させることで印影の形を変形させて生体情報を付加した印影を作成する印影作成部とを備え、作成された生体情報が付加された印影に基づいて照合を行うものである。
【０００８】
【発明の実施の形態】
この発明の実施の形態に係る印影照合システムにおいては、次のような特徴を有する。
１）印鑑作成時、生体情報として指紋情報を用い、その特徴点情報を抽出し、印鑑の文字（本人の名前）をその特徴情報をもとに一部変形させる。照合時は印影の変形量から指紋の特徴情報を抽出し、本人の指紋情報と照合する。
２）文字ではなく周囲の円の部分の太さ、歪みとして記録する。
３）電子印鑑の印影においても使用できる。
４）生体情報として上記では指紋を使用しているが、音声・顔・光彩・静脈等他の生体情報を使用する。
【０００９】
実施の形態１．
以下、具体的な実施の形態について説明する。図１は、この発明の実施の形態１に係る印影照合システムの印影作成側の構成を示す図である。図１に示すように、指紋読み取り部１で読み取られた生体情報としての指紋データは、指紋特徴抽出部２で指紋の特徴が抽出される。これと印影情報３（通常は名字）をもとに新しい印影を作成するが、この時、抽出された指紋の特徴に応じた変位情報を変位作成機能部５から得て、その変位をもとに指紋＋印影作成部４で指紋の特徴を付加した新しい印影６が作成され、印鑑が作成される。
【００１０】
図２は、作成された印影を説明するための図である。図２（ａ）は、元の印影であり、図２（ｂ）は、新たに作成された指紋情報を付加した印影である。ここでは、指紋情報を漢字の直線部の傾き、曲率変化に変換している。
【００１１】
次に、図３は、この発明の実施の形態１に係る印影照合システムの印影照合側の構成を示す図である。図３に示すように、印影読み取り部１０で読み取られた印影情報は変位情報抽出部１１で処理され、印影から変位が抽出され、この変位から指紋情報抽出部１２により指紋情報が抽出される。また、本人の指紋は指紋読み取り部１で読み取られ、指紋特徴抽出部２で指紋の特徴が抽出される。この指紋特徴抽出部２で抽出された本人の特徴情報と、指紋情報抽出部１２で抽出された印影からの特徴情報をもとに特徴照合部１３で本人か否かが照合される。その結果が判定出力装置１４のディスプレイ等へ出力される。
【００１２】
従って、実施の形態１によれば、印影に生体情報として指紋情報を埋め込むことにより、容易に印影から本人照合が行える。
【００１３】
実施の形態２．
上記実施の形態１では、印影情報（通常は名字）の字の部分を変化させたが、この実施の形態２では、図４に示すように、字を囲む丸の囲み部分を変位させる。この図４では、丸の囲み部分の曲率を変化させているが、線の太さを変化させてもよい。
【００１４】
実施の形態３．
上記実施の形態１及び２では、生体情報として指紋を用いた実施の形態を示したが、その他音声・顔・光彩・静脈等の他の生体情報でもよい。この場合は、図１と図２に示す構成において、指紋をこれらの生体情報名に置きかえればよい。
【００１５】
上述したように、印鑑のパターンに指紋等の生体情報を埋め込み、認証時に本人の生体情報と照合することにより、押印された印鑑が本人のものか否かを判定することができ、これにより、高いセキュリティ性が必要とされる場合にその印鑑が本人所有のものかどうかを正確に識別することができる。
【００１６】
【発明の効果】
以上のように、この発明によれば、印影に生体情報として指紋情報を埋め込むことにより、容易に印影から本人照合が行うことができ、高いセキュリティ性を確保できる。
【図面の簡単な説明】
【図１】 この発明の実施の形態１に係る印影照合システムの印影作成側の構成を示す図である。
【図２】 この発明の実施の形態１に係る印影照合システムにより作成された印影を説明するための図である。
【図３】 この発明の実施の形態１に係る印影照合システムの印影照合側の構成を示す図である。
【図４】 この発明の実施の形態２に係る印影照合システムにより作成された印影を説明するための図である。
【符号の説明】
１ 指紋読み取り部、２ 指紋特徴抽出部、３ 印影情報、４ 指紋＋印影作成部、５ 変位作成機能部、６ 指紋＋印影情報、１０ 印影読み取り部、１１変位情報抽出部、１２ 指紋情報抽出部、１３ 特徴照合部、１４ 判定出力装置。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an imprint collation system for collating imprints.
[0002]
[Prior art]
As a means for confirming the identity, there is a level difference from the seal to the seal, but a seal is generally used in Japan. However, stamps can be easily counterfeited as long as they have a seal, and there are problems such as forgery and fraud acquisition even if there are measures to prevent fraud such as seal certificates. There is a problem.
[0003]
Some electronic seal stamps and the like check security of electronic seal stamps by preparing security information such as serial numbers in addition to seals (see, for example, Patent Document 1). However, it is necessary to check the consistency as a large-scale system in which a server or the like is installed, and it is not possible to confirm whether or not it is the person's own imprint by itself.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-143969
[Problems to be solved by the invention]
In Japan, identity authentication using a seal is still the mainstream, and although there are security measures such as issuing a seal certificate, there are many problems such as forgery of a seal, unauthorized acquisition of a certificate, and forgery.
[0006]
The present invention has been made in view of the above-described points, and an object of the present invention is to obtain an imprint verification system that can easily perform personal verification from an imprint by embedding biometric information in the imprint.
[0007]
[Means for Solving the Problems]
An imprint collation system according to the present invention is extracted by a biometric information reading unit that reads biometric information, a feature information extraction unit that extracts features of the biometric information read by the biometric information reading unit, and the feature information extraction unit Creates an imprint with biometric information by deforming the shape of the imprint by changing at least one of the slope of the straight line or the curvature of the engraved character or the enclosing portion of the character based on the displacement information according to the feature An imprint creating unit that performs collation based on the created imprint to which the biometric information is added.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The seal impression system according to the embodiment of the present invention has the following characteristics.
1) When creating a seal stamp, fingerprint information is extracted as biometric information, the feature point information is extracted, and the character (name of the person) of the seal stamp is partially deformed based on the feature information. At the time of collation, the feature information of the fingerprint is extracted from the deformation amount of the seal impression and collated with the fingerprint information of the person.
2) Record not as characters but as thickness and distortion of surrounding circles.
3) It can also be used for imprinting electronic seals.
4) Although fingerprints are used as biometric information in the above, other biometric information such as voice, face, glow, and vein is used.
[0009]
Embodiment 1 FIG.
Hereinafter, specific embodiments will be described. FIG. 1 is a diagram showing the configuration of the seal creation side of the seal collation system according to Embodiment 1 of the present invention. As illustrated in FIG. 1, fingerprint data as biometric information read by the fingerprint reading unit 1 is extracted with a fingerprint feature extraction unit 2. A new imprint is created on the basis of this and imprint information 3 (usually last name). At this time, displacement information corresponding to the extracted fingerprint characteristics is obtained from the displacement creating function unit 5, and the displacement is determined based on the displacement. A new stamp 6 with the fingerprint feature added is created by the fingerprint + imprint creating unit 4 to create a seal.
[0010]
FIG. 2 is a diagram for explaining the created seal impression. FIG. 2A shows the original imprint, and FIG. 2B shows the newly added fingerprint information. Here, the fingerprint information is converted into the inclination and curvature change of the kanji straight line.
[0011]
Next, FIG. 3 is a diagram showing a configuration of the seal collation side of the seal collation system according to Embodiment 1 of the present invention. As shown in FIG. 3, the imprint information read by the
[0012]
Therefore, according to the first embodiment, by embedding fingerprint information as biometric information in an imprint, the person can be easily verified from the imprint.
[0013]
Embodiment 2. FIG.
In the first embodiment, the character portion of the seal impression information (usually the last name) is changed. However, in this second embodiment, as shown in FIG. 4, the circled portion surrounding the character is displaced. In FIG. 4, the curvature of the circled portion is changed, but the thickness of the line may be changed.
[0014]
Embodiment 3 FIG.
In Embodiments 1 and 2 described above, the fingerprint is used as the biological information. However, other biological information such as voice, face, glow, and vein may be used. In this case, in the configuration shown in FIGS. 1 and 2, it is only necessary to replace the fingerprint with these biometric information names.
[0015]
As described above, by embedding biometric information such as a fingerprint in the seal pattern and collating with the biometric information of the person at the time of authentication, it is possible to determine whether or not the stamped seal is that of the person, When high security is required, it is possible to accurately identify whether the seal is owned by the principal.
[0016]
【The invention's effect】
As described above, according to the present invention, by embedding fingerprint information as biometric information in an imprint, identity verification can be easily performed from the imprint, and high security can be ensured.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a seal creation side of an seal collation system according to Embodiment 1 of the present invention.
FIG. 2 is a diagram for explaining an imprint created by the imprint collation system according to the first embodiment of the present invention.
FIG. 3 is a diagram showing a configuration on the imprint collation side of the imprint collation system according to the first embodiment of the present invention.
FIG. 4 is a diagram for explaining an imprint created by an imprint collation system according to a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fingerprint reading part, 2 Fingerprint feature extraction part, 3 Imprint information, 4 Fingerprint + imprint creation part, 5 Displacement creation function part, 6 Fingerprint + imprint information, 10 Imprint reading part, 11 Displacement information extraction part, 12 Fingerprint information extraction part , 13 Feature matching unit, 14 Judgment output device.
Claims (4)
前記生体情報読み取り部により読み取られた生体情報の特徴を抽出する特徴情報抽出部と、
前記特徴情報抽出部により抽出された特徴に応じた変位情報に基づいて印影の文字または文字を囲む囲み部分における直線部の傾きまたは曲率の少なくともいずれかを変化させることで印影の形を変形させて生体情報を付加した印影を作成する印影作成部と
を備え、作成された生体情報が付加された印影に基づいて照合を行う印影照合システム。A biological information reading unit for reading biological information;
A feature information extraction unit for extracting features of the biological information read by the biological information reading unit;
Based on the displacement information corresponding to the feature extracted by the feature information extraction unit, the shape of the imprint is deformed by changing at least one of the inclination or the curvature of the straight line portion in the engraved character or the enclosing portion surrounding the character. And an imprint creating unit that creates an imprint with biometric information added thereto, and performs a collation based on the created imprint with the biometric information added.
前記印影情報読み取り部により読み取られた印影から変位情報を抽出する変位情報抽出部と、
前記変位情報抽出部により抽出された変位情報に基づいて生体情報の特徴を抽出する第１の特徴情報抽出部と、
生体情報を読み取る生体情報読み取り部と、
前記生体情報読み取り部により読み取られた生体情報の特徴を抽出する第２の特徴情報抽出部と、
前記第１と第２の特徴情報抽出部によりそれぞれ抽出された特徴情報を照合して照合結果を判定する照合判定手段と
を備え、印影に付加された生体情報に基づいて照合を行う印影照合システム。Based on the displacement information according to the characteristics of the biometric information, the shape of the imprint is transformed and biometric information is added by changing at least one of the inclination of the straight line portion or the curvature of the engraved character or the enclosing portion surrounding the character. An imprint information reading unit that reads the imprint,
A displacement information extraction unit for extracting displacement information from the seal imprint read by the seal imprint information reading unit;
A first feature information extraction unit for extracting features of biological information based on the displacement information extracted by the displacement information extraction unit;
A biological information reading unit for reading biological information;
A second feature information extraction unit for extracting features of the biological information read by the biological information reading unit;
And a collation determination unit that collates the feature information extracted by each of the first and second feature information extraction units to determine a collation result, and performs a collation based on biometric information added to the seal. .
生体情報を読み取る生体情報読み取り部と、
前記生体情報読み取り部により読み取られた生体情報の特徴を抽出する特徴情報抽出部と、
前記特徴情報抽出部により抽出された特徴に応じた変位情報に基づいて印影の文字または文字を囲む囲み部分における直線部の傾きまたは曲率の少なくともいずれかを変化させることで印影の形を変形させて生体情報を付加した印影を作成する印影作成部と
を備えると共に、
生体情報が付加された印影に基づいて照合を行う照合側に、
前記印影作成部により作成された印影を読み取る印影情報読み取り部と、
前記印影情報読み取り部により読み取られた印影から変位情報を抽出する変位情報抽出部と、
前記変位情報抽出部により抽出された変位情報に基づいて生体情報の特徴を抽出する第１の特徴情報抽出部と、
生体情報を読み取る生体情報読み取り部と、
前記生体情報読み取り部により読み取られた生体情報の特徴を抽出する第２の特徴情報抽出部と、
前記第１と第２の特徴情報抽出部によりそれぞれ抽出された特徴情報を照合して照合結果を判定する判定手段と
を備えたことを特徴とする印影照合システム。On the imprint creation side,
A biological information reading unit for reading biological information;
A feature information extraction unit for extracting features of the biological information read by the biological information reading unit;
Based on the displacement information corresponding to the feature extracted by the feature information extraction unit, the shape of the imprint is deformed by changing at least one of the inclination or the curvature of the straight line portion in the engraved character or the enclosing portion surrounding the character. And an imprint creating unit for creating an imprint with biometric information added thereto,
On the collation side that performs collation based on the imprint with biometric information added,
An imprint information reading unit for reading an imprint created by the imprint creating unit;
A displacement information extraction unit for extracting displacement information from the seal imprint read by the seal imprint information reading unit;
A first feature information extraction unit for extracting features of biological information based on the displacement information extracted by the displacement information extraction unit;
A biological information reading unit for reading biological information;
A second feature information extraction unit for extracting features of the biological information read by the biological information reading unit;
A seal imprint matching system comprising: a judging unit that collates the feature information extracted by the first and second feature information extraction units to determine a matching result.
前記生体情報として、指紋、音声、顔、光彩、静脈のいずれかの情報を用いる
ことを特徴とする印影照合システム。In the imprint matching system according to any one of claims 1 to 3,
Any one of fingerprint, voice, face, glow and vein information is used as the biometric information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003021391A JP4292011B2 (en) | 2003-01-30 | 2003-01-30 | Imprint verification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003021391A JP4292011B2 (en) | 2003-01-30 | 2003-01-30 | Imprint verification system |
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| JP2004234282A JP2004234282A (en) | 2004-08-19 |
| JP4292011B2 true JP4292011B2 (en) | 2009-07-08 |
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