JP2003051013A - System and method for authenticating fingerprint and portable telephone equipment - Google Patents

System and method for authenticating fingerprint and portable telephone equipment

Info

Publication number
JP2003051013A
JP2003051013A JP2001240901A JP2001240901A JP2003051013A JP 2003051013 A JP2003051013 A JP 2003051013A JP 2001240901 A JP2001240901 A JP 2001240901A JP 2001240901 A JP2001240901 A JP 2001240901A JP 2003051013 A JP2003051013 A JP 2003051013A
Authority
JP
Japan
Prior art keywords
fingerprint image
fingerprint
divided
procedure
capturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001240901A
Other languages
Japanese (ja)
Inventor
Masato Nishizawa
眞人 西澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2001240901A priority Critical patent/JP2003051013A/en
Publication of JP2003051013A publication Critical patent/JP2003051013A/en
Pending legal-status Critical Current

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  • Image Input (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a system and a method for authenticating fingerprint and portable telephone equipment which enable an authentication to be completed in a short time without requiring the composite of fingerprint images. SOLUTION: This system is provided with a sensor 3 for capturing a fingerprint image 2 from a finger, a memory 4 for acquiring a plurality of divided fingerprint images 2a relatively to the sensor 3, a comparator 5 for acquiring a degree of approximation of features between a registered fingerprint image 2b and each of divided fingerprint images 2a from the memory 4 and a decider 6 for judging whether the registered fingerprint image 2b is the same image as the fingerprint image 2 provided from the sensor 3 or not from the value of approximation, which is provided from the comparator 5, to the divided fingerprint images 2a, and the comparator 5 successively compares the feature of the registered fingerprint image 2b with that of each of divided fingerprint images 2a.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は指紋認証システム、
指紋認証方法および携帯電話装置に関するものであり、
特に、個人認証機能を有する指紋認証システム、小型の
指紋センサーを用いた指紋認証方法、指紋認証システム
を有する携帯電話装置に関するものである。
TECHNICAL FIELD The present invention relates to a fingerprint authentication system,
The present invention relates to a fingerprint authentication method and a mobile phone device,
In particular, the present invention relates to a fingerprint authentication system having a personal authentication function, a fingerprint authentication method using a small fingerprint sensor, and a mobile phone device having the fingerprint authentication system.

【0002】[0002]

【従来の技術】従来、この種の指紋認証方式としては、
特開平10―91769号公報に記載されているよう
に、分割して取得された指紋画像を合成して、全体の指
紋画像を得ることを目的としており、指紋認証は合成さ
れた全体の指紋画像と、あらかじめ登録されている指紋
画像の特徴を比較することにより行われるものが知られ
ている。
2. Description of the Related Art Conventionally, as this type of fingerprint authentication system,
As described in Japanese Patent Application Laid-Open No. 10-91769, the aim is to obtain the entire fingerprint image by synthesizing the fingerprint images obtained by division, and the fingerprint authentication is for the synthesized overall fingerprint image. Is known by comparing the characteristics of fingerprint images registered in advance.

【0003】[0003]

【発明が解決しようとする課題】しかし、このような従
来の指紋認証方式では、分割された指紋画像(以下「分
割指紋画像」という。)からいったん指全体の指紋画像
を合成し、その後あらかじめ登録されている指紋画像
(以下「登録指紋画像」という。)と特徴量とを比較し
認証するので、認証を終えるまでに時間がかかるという
問題があった。なお、特徴量としては、視覚的な特徴で
あって、例えば3次元形状の場合、形状、色、大きさ、
縦横比、模様等がある。
However, in such a conventional fingerprint authentication method, a fingerprint image of the entire finger is once synthesized from divided fingerprint images (hereinafter referred to as "divided fingerprint image"), and then registered in advance. Since the fingerprint image (hereinafter referred to as “registered fingerprint image”) that has been registered is compared with the feature amount for authentication, there is a problem that it takes time to complete the authentication. Note that the feature amount is a visual feature, for example, in the case of a three-dimensional shape, the shape, color, size,
There are aspect ratios, patterns, etc.

【0004】本発明はこのような問題を解決するために
なされたもので、指紋画像の合成が不要で、短時間に認
証を終えることが可能な指紋認証システム、指紋認証方
法および携帯電話装置を提供するものである。
The present invention has been made in order to solve such a problem, and provides a fingerprint authentication system, a fingerprint authentication method and a mobile phone device capable of completing authentication in a short time without synthesizing fingerprint images. It is provided.

【0005】[0005]

【課題を解決するための手段】本発明の指紋認証システ
ムは、指から指紋画像を取り込む指紋画像取り込み手段
と、この指紋画像取り込み手段に対して複数の分割指紋
画像を取得する指紋画像取得手段と、この指紋画像取得
手段から登録指紋画像と前記分割指紋画像との近似度を
得る近似度取得手段と、この近似度取得手段から得られ
た前記分割指紋画像に対する近似度の値から、前記登録
指紋画像と前記指紋画像取り込み手段から得られた前記
指紋画像が同一であるか否かを判断する指紋画像判断手
段とを備え、前記近似度取得手段が逐次前記登録指紋画
像と前記分割指紋画像の特徴量とを比較する手段を有し
た構成となっている。この構成により、前記分割指紋画
像から前記指全体の前記指紋画像を合成せずに、短時間
に認証を終えることが可能となる。
A fingerprint authentication system of the present invention comprises a fingerprint image capturing means for capturing a fingerprint image from a finger, and a fingerprint image acquiring means for acquiring a plurality of divided fingerprint images for the fingerprint image capturing means. The registered fingerprint is calculated from the approximation degree obtaining means for obtaining the degree of approximation between the registered fingerprint image and the divided fingerprint image from the fingerprint image obtaining means and the value of the degree of approximation for the divided fingerprint image obtained from the approximation degree obtaining means. A fingerprint image determining means for determining whether or not the image and the fingerprint image obtained from the fingerprint image capturing means are the same, and the approximation degree obtaining means successively features the registered fingerprint image and the divided fingerprint image. It is configured to have a means for comparing with the quantity. With this configuration, it is possible to finish the authentication in a short time without synthesizing the fingerprint image of the entire finger from the divided fingerprint image.

【0006】ここで、本発明の指紋認証システムは、前
記指紋画像取り込み手段が1対2の比率以上に横長の領
域の長辺に対して直角方向に、前記指をスライドさせて
前記指紋画像を取り込む手段を有した構成となってい
る。この構成により、前記分割指紋画像から前記指全体
の前記指紋画像を合成せずに、短時間に認証を終えるこ
とが可能となる。
Here, in the fingerprint authentication system of the present invention, the fingerprint image capturing means slides the finger in the direction perpendicular to the long side of the horizontally long region having a ratio of 1: 2 or more to display the fingerprint image. It is configured to have a means for taking in. With this configuration, it is possible to complete the authentication in a short time without synthesizing the fingerprint image of the entire finger from the divided fingerprint image.

【0007】また、本発明の指紋認証方法は指から指紋
画像を取り込む指紋画像取り込み手順と、この指紋画像
取り込み手順に対して複数の分割指紋画像を取得する指
紋画像取得手順と、この指紋画像取得手順から登録指紋
画像と前記分割指紋画像との近似度を得る近似度取得手
順と、この近似度取得手順から得られた前記分割指紋画
像に対する近似度の値から、前記登録指紋画像と前記指
紋画像取り込み手順から得られた前記指紋画像が同一で
あるか否かを判断する指紋画像判断手順とを備え、前記
近似度取得手順が逐次前記登録指紋画像と前記分割指紋
画像の特徴量とを比較する手順を有した方法となってい
る。この方法により、前記分割指紋画像から前記指全体
の前記指紋画像を合成せずに、短時間に認証を終えるこ
とが可能となる。
In the fingerprint authentication method of the present invention, a fingerprint image capturing procedure for capturing a fingerprint image from a finger, a fingerprint image acquiring procedure for capturing a plurality of divided fingerprint images in response to this fingerprint image capturing procedure, and this fingerprint image acquiring procedure. From the approximation degree obtaining procedure for obtaining the degree of approximation between the registered fingerprint image and the divided fingerprint image from the procedure and the value of the degree of approximation for the divided fingerprint image obtained from the approximation degree obtaining procedure, the registered fingerprint image and the fingerprint image are obtained. A fingerprint image determination procedure for determining whether or not the fingerprint images obtained from the acquisition procedure are the same, and the approximation degree acquisition procedure sequentially compares the registered fingerprint image and the feature amount of the divided fingerprint image. It is a method with procedures. According to this method, it is possible to finish the authentication in a short time without synthesizing the fingerprint image of the entire finger from the divided fingerprint image.

【0008】ここで、本発明の指紋認証方法は前記指紋
画像取り込み手順が1対2の比率以上に横長の領域内で
前記指紋画像を取り込む手順を有し、前記指紋画像取得
手順が前記領域の長辺に対して直角方向に、前記指をス
ライドさせて前記指紋画像を取得する手順を有した方法
となっている。この方法により、前記分割指紋画像から
前記指全体の前記指紋画像を合成せずに、短時間に認証
を終えることが可能となる。
Here, in the fingerprint authentication method of the present invention, the fingerprint image capturing procedure has a procedure of capturing the fingerprint image in a horizontally long area having a ratio of 1: 2 or more, and the fingerprint image acquiring procedure includes This is a method having a procedure of sliding the finger in the direction perpendicular to the long side to acquire the fingerprint image. According to this method, it is possible to finish the authentication in a short time without synthesizing the fingerprint image of the entire finger from the divided fingerprint image.

【0009】本発明の携帯電話装置は請求項1または請
求項2に記載の指紋認証システムを具備した構成を有し
ている。この構成により、前記分割指紋画像から前記指
全体の前記指紋画像を合成せずに、短時間に認証を終え
ることが可能となる。
The portable telephone device of the present invention has a configuration provided with the fingerprint authentication system according to claim 1 or 2. With this configuration, it is possible to complete the authentication in a short time without synthesizing the fingerprint image of the entire finger from the divided fingerprint image.

【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を用いて説明する。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

【0010】図1〜図4に示すように、本発明の実施の
形態の指紋認証システムは、認証を行おうとする指1か
ら得られる指紋1aの画像である指紋画像2を取り込む
指紋画像取り込み手段としてのセンサ3と、このセンサ
3に対して指1をスライドさせて時系列に指紋画像2か
ら分割された指紋画像(以下「分割指紋画像」とい
う。)2aを取得する指紋画像取得手段としてのメモリ
4と、このメモリ4にすでに登録されている指紋画像
(以下「登録指紋画像」という。)2bと分割指紋画像
2aの特徴の近似度を取得する近似度取得手段としての
比較器5と、この比較器5から得られた複数の分割指紋
画像2aに対する近似度の値から、登録指紋画像2bと
センサ3から得られた指紋画像2が同一の指紋画像であ
るか否かを判断する指紋画像判断手段としての判定器6
とを有する構成としたものである。
As shown in FIGS. 1 to 4, the fingerprint authentication system according to the embodiment of the present invention is a fingerprint image capturing means for capturing a fingerprint image 2 which is an image of a fingerprint 1a obtained from a finger 1 to be authenticated. As a fingerprint image acquisition unit that acquires a fingerprint image (hereinafter referred to as a “divided fingerprint image”) 2a divided from the fingerprint image 2 in time series by sliding the finger 1 with respect to the sensor 3. A memory 4; a comparator 5 as an approximation degree obtaining means for obtaining the degree of approximation of the features of the fingerprint image (hereinafter referred to as "registered fingerprint image") 2b already registered in the memory 4 and the divided fingerprint image 2a; A fingerprint that determines whether the registered fingerprint image 2b and the fingerprint image 2 obtained from the sensor 3 are the same fingerprint image based on the value of the degree of approximation to the plurality of divided fingerprint images 2a obtained from the comparator 5. Determiner 6 as an image determination means
It is configured to have and.

【0011】センサ3は、直方体形状をなし、その側面
上に長辺と短辺との比率が1対2以上の横長の領域であ
って、指1をスライドさせて指紋画像2を取り込むこと
が可能な領域を設けている。登録指紋画像2bは、分割
前の登録指紋画像2g、2h、2i、2jを有してい
る。
The sensor 3 has a rectangular parallelepiped shape and is a laterally long region on the side surface of which the ratio of the long side to the short side is 1: 2 or more, and the finger 1 can be slid to capture the fingerprint image 2. A possible area is provided. The registered fingerprint image 2b has the unregistered registered fingerprint images 2g, 2h, 2i, and 2j.

【0012】本実施の形態の指紋認証システムでは、比
較器5が逐次登録指紋画像2bと分割指紋画像2aの特
徴量とを比較するものであるので、分割指紋画像2aか
ら指1全体の指紋画像2を合成せずに、短時間に認証を
終えることができる。
In the fingerprint authentication system of the present embodiment, since the comparator 5 compares the feature quantities of the sequentially registered fingerprint image 2b and the divided fingerprint image 2a, the fingerprint image of the entire finger 1 from the divided fingerprint image 2a. Authentication can be completed in a short time without synthesizing 2.

【0013】また、指紋認証方法としては、比較器5が
逐次登録指紋画像2bと分割指紋画像2aの特徴量とを
比較するので、分割指紋画像2aから指1全体の指紋画
像2を合成せずに、短時間に認証を終えることができ
る。比較器5は、メモリ4に記録されたあらかじめ登録
されている指紋画像2bとの相関を比較する。判定器6
では、複数の比較結果を統合し、認証結果を判定する。
Further, as a fingerprint authentication method, since the comparator 5 compares the feature amounts of the sequentially registered fingerprint image 2b and the divided fingerprint image 2a, the fingerprint image 2 of the entire finger 1 is not synthesized from the divided fingerprint image 2a. Moreover, the authentication can be completed in a short time. The comparator 5 compares the correlation with the fingerprint image 2b recorded in the memory 4 and registered in advance. Judge 6
Then, the plurality of comparison results are integrated to determine the authentication result.

【0014】次に、本実施の形態の指紋認証方法とし
て、指紋1aの判定に至る指紋認証方式の一例を説明す
る。
Next, as a fingerprint authentication method according to the present embodiment, an example of a fingerprint authentication method for determining the fingerprint 1a will be described.

【0015】まず、指1をスライドさせて、センサ3か
ら得られる指紋画像2は、図4に示すように、指紋画像
2aが指紋画像2c、2d、2e、2fのように、指紋
1aの一部が切り取られたようになっている。
First, as shown in FIG. 4, the fingerprint image 2 obtained from the sensor 3 by sliding the finger 1 is one of the fingerprints 1a such that the fingerprint image 2a is the fingerprint images 2c, 2d, 2e and 2f. It seems that the part has been cut off.

【0016】本実施の形態の指紋認証システムでは、セ
ンサ3が1対2の比率以上に横長の領域の長辺に対して
直角方向に、指1をスライドさせて指紋画像2を取り込
むものであるので、分割指紋画像2aから指1全体の指
紋画像2を合成せずに、短時間に認証を終えることがで
きる。
In the fingerprint authentication system of the present embodiment, the sensor 3 captures the fingerprint image 2 by sliding the finger 1 in the direction perpendicular to the long side of the horizontally long region at a ratio of 1: 2 or more. Therefore, the authentication can be completed in a short time without synthesizing the fingerprint image 2 of the entire finger 1 from the divided fingerprint image 2a.

【0017】また、本実施の形態の指紋認証方法では、
センサ3が1対2の比率以上に横長の領域の長辺に対し
て直角方向に、指1をスライドさせて指紋画像2を取り
込むので、分割指紋画像2aから指1全体の指紋画像2
を合成せずに、短時間に認証を終えることができる。
Further, in the fingerprint authentication method of this embodiment,
Since the sensor 3 captures the fingerprint image 2 by sliding the finger 1 in the direction perpendicular to the long side of the horizontally long area with a ratio of 1: 2 or more, the fingerprint image 2 of the entire finger 1 from the divided fingerprint image 2a is captured.
Authentication can be completed in a short time without synthesizing.

【0018】比較器5は、指紋画像2cがあらかじめ登
録されている指紋画像2bのどの部分に相当するか比較
し、例えば指紋画像2gがもっとも似ていると判断し、
その類似程度を結果として判定器6に出力する。指1を
スライドしている間に得られる、指紋画像2c、2d、
2e、2fに関しても同様に、比較器5で指紋画像2
g、2h、2i、2jに似ていると判断され、その類似
程度を判定器6に出力する。判定器6は、各々の指紋画
像2bが分割された指紋画像2aの類似度の平均値を求
め、ある閾値をもって、指1の指紋画像2があらかじめ
メモリ4に登録されている指紋画像2bと同じか否かの
判定を行う。
The comparator 5 compares the fingerprint image 2c with which part of the fingerprint image 2b registered in advance, and determines that the fingerprint image 2g is the most similar, for example.
The degree of similarity is output to the determiner 6 as a result. Fingerprint images 2c, 2d, obtained while sliding the finger 1.
Similarly, the fingerprint image 2
It is determined to be similar to g, 2h, 2i, and 2j, and the degree of similarity is output to the determiner 6. The determiner 6 calculates the average value of the similarities of the fingerprint images 2a obtained by dividing each fingerprint image 2b, and the fingerprint image 2 of the finger 1 is the same as the fingerprint image 2b registered in the memory 4 in advance with a certain threshold value. It is determined whether or not.

【0019】本実施の形態の携帯電話装置は、図示しな
いが本実施の形態の指紋認証システムを具備したので、
携帯電話装置内の比較器5が逐次登録指紋画像2bと分
割指紋画像2aの特徴量とを比較することができ、分割
指紋画像2aから指1全体の指紋画像2を合成せずに、
短時間に認証を終えることができる。
Although not shown, the mobile phone device of this embodiment includes the fingerprint authentication system of this embodiment,
The comparator 5 in the mobile phone device can sequentially compare the registered fingerprint image 2b with the feature amount of the divided fingerprint image 2a, and without combining the fingerprint image 2 of the entire finger 1 from the divided fingerprint image 2a,
Authentication can be completed in a short time.

【0020】[0020]

【発明の効果】以上説明したように、本発明は指から指
紋画像を取り込む指紋画像取り込み手段と、この指紋画
像取り込み手段に対して複数の分割指紋画像を取得する
指紋画像取得手段と、この指紋画像取得手段から登録指
紋画像と前記分割指紋画像との特徴の近似度を得る近似
度取得手段と、この近似度取得手段から得られた前記分
割指紋画像に対する近似度の値から、前記登録指紋画像
と前記指紋画像取り込み手段から得られた前記指紋画像
が同一であるか否かを判断する指紋画像判断手段とを備
え、前記近似度取得手段が逐次前記登録指紋画像と前記
分割指紋画像の特徴量とを比較する手段を有したことに
より、指紋画像の合成が不要で、短時間に認証を終える
ことができるというすぐれた効果を有する指紋認証シス
テム、指紋認証方法および携帯電話装置を提供すること
ができるものである。
As described above, according to the present invention, a fingerprint image capturing means for capturing a fingerprint image from a finger, a fingerprint image capturing means for capturing a plurality of divided fingerprint images for the fingerprint image capturing means, and the fingerprint The registered fingerprint image is obtained from the approximation degree obtaining means for obtaining the degree of approximation of the feature between the registered fingerprint image and the divided fingerprint image from the image obtaining means, and the value of the degree of approximation for the divided fingerprint image obtained from the approximation degree obtaining means. And a fingerprint image determining means for determining whether or not the fingerprint images obtained from the fingerprint image capturing means are the same, and the approximation degree obtaining means successively features the registered fingerprint image and the divided fingerprint images. The fingerprint authentication system and fingerprint authentication method have an excellent effect that the fingerprint image synthesis is unnecessary and the authentication can be completed in a short time by having a means for comparing And it is capable to provide a mobile telephone device.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る実施の形態における指紋認証シス
テムを示すブロック図
FIG. 1 is a block diagram showing a fingerprint authentication system according to an embodiment of the present invention.

【図2】指紋画像を示す説明図FIG. 2 is an explanatory diagram showing a fingerprint image.

【図3】登録指紋画像を示す説明図FIG. 3 is an explanatory diagram showing a registered fingerprint image.

【図4】分割指紋画像を示す説明図FIG. 4 is an explanatory diagram showing a divided fingerprint image.

【符号の説明】[Explanation of symbols]

1a 指紋 2 指紋画像 2a、2c、2d、2e、2f 分割指紋画像 2b、2g、2h、2i、2j 登録指紋画像 3 センサ(指紋画像取り込み手段) 4 メモリ(指紋画像取得手段) 5 比較器(近似度取得手段) 6 判定器(指紋画像判断手段) 1a fingerprint 2 fingerprint image 2a, 2c, 2d, 2e, 2f divided fingerprint image 2b, 2g, 2h, 2i, 2j registered fingerprint image 3 sensors (fingerprint image capturing means) 4 memory (fingerprint image acquisition means) 5 Comparator (approximation degree acquisition means) 6 Judgment device (fingerprint image judgment means)

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 5B043 AA01 EA05 EA15 FA03 FA07 GA02 5B047 AA25 BA01 BB04 BC14 BC23 CB09 CB22 DC09 5J104 AA07 KA01 KA17 NA43 PA02 5K067 AA33 BB04 EE03 HH22 HH23   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5B043 AA01 EA05 EA15 FA03 FA07                       GA02                 5B047 AA25 BA01 BB04 BC14 BC23                       CB09 CB22 DC09                 5J104 AA07 KA01 KA17 NA43 PA02                 5K067 AA33 BB04 EE03 HH22 HH23

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 指から指紋画像を取り込む指紋画像取り
込み手段と、この指紋画像取り込み手段に対して複数の
分割指紋画像を取得する指紋画像取得手段と、この指紋
画像取得手段から登録指紋画像と前記分割指紋画像との
特徴の近似度を得る近似度取得手段と、この近似度取得
手段から得られた前記分割指紋画像に対する近似度の値
から、前記登録指紋画像と前記指紋画像取り込み手段か
ら得られた前記指紋画像が同一であるか否かを判断する
指紋画像判断手段とを備え、前記近似度取得手段が逐次
前記登録指紋画像と前記分割指紋画像の特徴量とを比較
する手段を有したことを特徴とする指紋認証システム。
1. A fingerprint image capturing means for capturing a fingerprint image from a finger, a fingerprint image acquiring means for acquiring a plurality of divided fingerprint images for the fingerprint image capturing means, and a registered fingerprint image and the registered fingerprint image from the fingerprint image acquiring means. Obtained from the registered fingerprint image and the fingerprint image capturing unit from the approximation degree obtaining unit that obtains the degree of approximation of the feature of the divided fingerprint image and the value of the degree of approximation with respect to the divided fingerprint image obtained from the approximation degree obtaining unit. A fingerprint image determining means for determining whether or not the fingerprint images are the same, and the approximation degree acquiring means has means for sequentially comparing the registered fingerprint image and the feature amount of the divided fingerprint images. A fingerprint authentication system characterized by.
【請求項2】 前記指紋画像取り込み手段が1対2の比
率以上に横長の領域の長辺に対して直角方向に、前記指
をスライドさせて前記指紋画像を取り込む手段を有した
ことを特徴とする請求項1に記載の指紋認証システム。
2. The fingerprint image capturing means has means for capturing the fingerprint image by sliding the finger in a direction perpendicular to a long side of a horizontally long region having a ratio of 1: 2 or more. The fingerprint authentication system according to claim 1.
【請求項3】 指から指紋画像を取り込む指紋画像取り
込み手順と、この指紋画像取り込み手順に対して複数の
分割指紋画像を取得する指紋画像取得手順と、この指紋
画像取得手順から登録指紋画像と前記分割指紋画像との
近似度を得る近似度取得手順と、この近似度取得手順か
ら得られた前記分割指紋画像に対する近似度の値から、
前記登録指紋画像と前記指紋画像取り込み手順から得ら
れた前記指紋画像が同一であるか否かを判断する指紋画
像判断手順とを備え、前記近似度取得手順が逐次前記登
録指紋画像と前記分割指紋画像の特徴量とを比較する手
順を有したことを特徴とする指紋認証方法。
3. A fingerprint image capturing procedure for capturing a fingerprint image from a finger, a fingerprint image capturing procedure for capturing a plurality of divided fingerprint images for the fingerprint image capturing procedure, and a registered fingerprint image and the registered fingerprint image from the fingerprint image capturing procedure. From the degree of approximation acquisition procedure to obtain the degree of approximation with the divided fingerprint image, and the value of the degree of approximation to the divided fingerprint image obtained from this degree of approximation acquisition procedure,
The registration fingerprint image and the fingerprint image determination procedure for determining whether or not the fingerprint image obtained from the fingerprint image capturing procedure are the same, wherein the approximation degree obtaining procedure sequentially performs the registration fingerprint image and the divided fingerprint. A fingerprint authentication method characterized in that it has a procedure of comparing with a feature amount of an image.
【請求項4】 前記指紋画像取り込み手順が1対2の比
率以上に横長の領域内で前記指紋画像を取り込む手順を
有し、前記指紋画像取得手順が前記領域の長辺に対して
直角方向に、前記指をスライドさせて前記指紋画像を取
得する手順を有したことを特徴とする請求項3に記載の
指紋認証方法。
4. The fingerprint image capturing procedure has a procedure of capturing the fingerprint image in a horizontally long area at a ratio of 1: 2 or more, and the fingerprint image acquiring procedure is in a direction perpendicular to a long side of the area. The fingerprint authentication method according to claim 3, further comprising: a step of sliding the finger to obtain the fingerprint image.
【請求項5】 請求項1または請求項2に記載の指紋認
証システムを具備したことを特徴とする携帯電話装置。
5. A mobile phone device comprising the fingerprint authentication system according to claim 1 or 2.
JP2001240901A 2001-08-08 2001-08-08 System and method for authenticating fingerprint and portable telephone equipment Pending JP2003051013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001240901A JP2003051013A (en) 2001-08-08 2001-08-08 System and method for authenticating fingerprint and portable telephone equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001240901A JP2003051013A (en) 2001-08-08 2001-08-08 System and method for authenticating fingerprint and portable telephone equipment

Publications (1)

Publication Number Publication Date
JP2003051013A true JP2003051013A (en) 2003-02-21

Family

ID=19071445

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP2003051013A (en)

Cited By (7)

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KR100745338B1 (en) 2005-06-15 2007-08-02 엘지전자 주식회사 Apparatus and method of fingerprint recognition
CN100343865C (en) * 2004-04-13 2007-10-17 日本电气英富醍株式会社 Fingerprint reading method and fingerprint reading system
CN100361137C (en) * 2004-09-30 2008-01-09 日本电气英富醍株式会社 Image construction method, fingerprint image construction apparatus, and program
US7760922B2 (en) 2004-07-05 2010-07-20 Nec Infrontia Corporation Fingerprint reading method for a sweep-type fingerprint sensor, fingerprint reading system and program
WO2012111095A1 (en) * 2011-02-15 2012-08-23 富士通株式会社 Biometric authentication device, biometric authentication method, and computer program for biometric authentication
KR101314945B1 (en) 2009-12-22 2013-10-04 닛본 덴끼 가부시끼가이샤 Fake finger determination device
US10095913B2 (en) 2015-11-24 2018-10-09 Samsung Electronics Co., Ltd. User authentication method and apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100343865C (en) * 2004-04-13 2007-10-17 日本电气英富醍株式会社 Fingerprint reading method and fingerprint reading system
US7412083B2 (en) 2004-04-13 2008-08-12 Nec Infrontia Corporation Fingerprint reading method and fingerprint reading system
US7760922B2 (en) 2004-07-05 2010-07-20 Nec Infrontia Corporation Fingerprint reading method for a sweep-type fingerprint sensor, fingerprint reading system and program
CN100361137C (en) * 2004-09-30 2008-01-09 日本电气英富醍株式会社 Image construction method, fingerprint image construction apparatus, and program
KR100745338B1 (en) 2005-06-15 2007-08-02 엘지전자 주식회사 Apparatus and method of fingerprint recognition
KR101314945B1 (en) 2009-12-22 2013-10-04 닛본 덴끼 가부시끼가이샤 Fake finger determination device
WO2012111095A1 (en) * 2011-02-15 2012-08-23 富士通株式会社 Biometric authentication device, biometric authentication method, and computer program for biometric authentication
JPWO2012111095A1 (en) * 2011-02-15 2014-07-03 富士通株式会社 Biometric authentication apparatus, biometric authentication method, and biometric authentication computer program
US8983143B2 (en) 2011-02-15 2015-03-17 Fujitsu Limited Biometric authentication device, biometric authentication method and computer program for biometric authentication
JP5737300B2 (en) * 2011-02-15 2015-06-17 富士通株式会社 Biometric authentication apparatus, biometric authentication method, and biometric authentication computer program
US10095913B2 (en) 2015-11-24 2018-10-09 Samsung Electronics Co., Ltd. User authentication method and apparatus

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