KR20020040407A - 시프트된 지문이미지의 보정방법 - Google Patents
시프트된 지문이미지의 보정방법 Download PDFInfo
- Publication number
- KR20020040407A KR20020040407A KR1020000070446A KR20000070446A KR20020040407A KR 20020040407 A KR20020040407 A KR 20020040407A KR 1020000070446 A KR1020000070446 A KR 1020000070446A KR 20000070446 A KR20000070446 A KR 20000070446A KR 20020040407 A KR20020040407 A KR 20020040407A
- Authority
- KR
- South Korea
- Prior art keywords
- fingerprint image
- shifted
- input
- input fingerprint
- image
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
- G06V10/7515—Shifting the patterns to accommodate for positional errors
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Evolutionary Computation (AREA)
- Databases & Information Systems (AREA)
- Artificial Intelligence (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Image Input (AREA)
- Collating Specific Patterns (AREA)
Abstract
Description
Claims (3)
- 시프트된 지문이미지를 보정하는 방법에 있어서,손가락을 지문감지소자부의 표면에 지문을 접촉시켜 입력지문이미지를 발생시키는 단계;상기 이미지센서 소자부에서 발생되는 입력지문이미지가 시프트되었는지를 제어기에서 확인하는 단계;상기 입력지문이미지가 시프트되면 제어기는 메모리부에 저장된 기준지문이미지와 시프트된 입력지문이미지에서 특징점의 개수가 동일하게 각각 블록화하여 블록화된 영역에서 각각의 매칭률를 산출하는 단계; 및상기 기준지문이미지와 입력지문이미지의 각각의 매칭률를 비교하여 각각의 매칭률이 소정 값 이상인지 제어기가 확인하여 동일인지 여부를 확인하는 단계가 포함되는 것을 특징으로 하는 시프트된 지문이미지보정방법.
- 제 1 항에 있어서, 상기 기준지문이미지와 시프트된 입력지문이미지에서 특징점의 개수가 동일하게 각각 블록화하고 블록화된 영역에서 각각의 매칭률를 산출하는 단계는 상기 입력지문이미지가 시프트되면 화상처리부에 저장된 기준지문이미지와 입력지문이미지에 분포된 특징점의 개수가 동일하게 기준지문이미지와 입력지문이미지를 블록화하는 단계;상기 기준지문이미지와 입력지문이미지의 블록내에서 일치되는 특징점의 개수를 산출하는 단계;상기 기준지문이미지와 입력지문이미지의 블록내에서 일치되는 특징점의 개수가 산출되면 제어기는 일치되는 특징점의 개수를 이용하여 기준지문이미지와 입력지문이미지의 각각의 매칭률를 산출하는 단계; 및상기 기준지문이미지와 입력지문이미지의 각각의 매칭률이 산출되면 제어기는 기준지문이미지와 입력지문이미지의 각각의 매칭률를 비교하는 단계가 포함되는 것을 특징으로 하는 시프트된 지문이미지보정방법.
- 제 1 항에 있어서, 상기 동일인지 여부를 확인하는 단계에서 동일인으로 확인되면 접근을 허가하는 단계; 및상기 동일인으로 확인되지 않으면 접근을 블능시키는 단계가 구비됨을 특징으로 하는 시프트된 지문이미지보정방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000070446A KR20020040407A (ko) | 2000-11-24 | 2000-11-24 | 시프트된 지문이미지의 보정방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000070446A KR20020040407A (ko) | 2000-11-24 | 2000-11-24 | 시프트된 지문이미지의 보정방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20020040407A true KR20020040407A (ko) | 2002-05-30 |
Family
ID=19701281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000070446A Ceased KR20020040407A (ko) | 2000-11-24 | 2000-11-24 | 시프트된 지문이미지의 보정방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20020040407A (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100430054B1 (ko) * | 2001-05-25 | 2004-05-03 | 주식회사 씨크롭 | 리니어 지문 검출센서를 이용한 지문획득 방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63211081A (ja) * | 1987-02-27 | 1988-09-01 | Shinsaibi Denki Kk | 指紋照合における補正照合と二次再照合の方法 |
| JPH04306777A (ja) * | 1991-04-03 | 1992-10-29 | Nippon Denki Security Syst Kk | 指紋特徴修正システム |
| JPH04306778A (ja) * | 1991-04-03 | 1992-10-29 | Nippon Denki Security Syst Kk | 指紋特徴修正システム |
| JPH04324582A (ja) * | 1991-04-24 | 1992-11-13 | Fujitsu Ltd | ムービング・ウインドウ型指紋照合方式における歪み補正情報更新方式 |
| JPH11316835A (ja) * | 1998-05-01 | 1999-11-16 | Nec Software Chubu Ltd | 指紋補正表示方法 |
-
2000
- 2000-11-24 KR KR1020000070446A patent/KR20020040407A/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63211081A (ja) * | 1987-02-27 | 1988-09-01 | Shinsaibi Denki Kk | 指紋照合における補正照合と二次再照合の方法 |
| JPH04306777A (ja) * | 1991-04-03 | 1992-10-29 | Nippon Denki Security Syst Kk | 指紋特徴修正システム |
| JPH04306778A (ja) * | 1991-04-03 | 1992-10-29 | Nippon Denki Security Syst Kk | 指紋特徴修正システム |
| JPH04324582A (ja) * | 1991-04-24 | 1992-11-13 | Fujitsu Ltd | ムービング・ウインドウ型指紋照合方式における歪み補正情報更新方式 |
| JPH11316835A (ja) * | 1998-05-01 | 1999-11-16 | Nec Software Chubu Ltd | 指紋補正表示方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100430054B1 (ko) * | 2001-05-25 | 2004-05-03 | 주식회사 씨크롭 | 리니어 지문 검출센서를 이용한 지문획득 방법 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8493178B2 (en) | Forged face detecting method and apparatus thereof | |
| US6393139B1 (en) | Sequence-encoded multiple biometric template security system | |
| JP4387643B2 (ja) | 個人認識機能付き処理装置 | |
| KR100862916B1 (ko) | 이중 지문인식 장치 및 그 방법 | |
| US20050232471A1 (en) | Biometric data card and authentication method | |
| US8379936B2 (en) | Authentication apparatus and authentication system | |
| JPH0424889A (ja) | 個人認証機能付きicカード | |
| US11997087B2 (en) | Mobile enrollment using a known biometric | |
| WO2002065405A2 (en) | A system and a method for person's identity authentication | |
| KR20090011127U (ko) | 다중 생체인식 장치 | |
| JP2018169943A (ja) | 顔認証処理装置、顔認証処理方法及び顔認証処理システム | |
| KR100460825B1 (ko) | 지문이미지 취득방법 | |
| US20060034497A1 (en) | Protometric authentication system | |
| KR20000030122A (ko) | 멀티바이오메트릭정보를 이용한 사용자인증방법 및사용자인증시스템 | |
| KR100350023B1 (ko) | 지문이미지의 보정방법 | |
| KR100716743B1 (ko) | 등록된 지문 수에 따라 비교 인증 기준값을 자동으로조정하는 지문 인증 시스템 및 그 운용 방법 | |
| KR100348520B1 (ko) | 지문이미지의 보정방법 | |
| KR20020040407A (ko) | 시프트된 지문이미지의 보정방법 | |
| JP2002279413A (ja) | 擬似指紋判別装置および指紋照合装置 | |
| Han et al. | Generation of reliable PINs from fingerprints | |
| KR100466287B1 (ko) | 지문이미지의 인증방법 | |
| KR101906141B1 (ko) | 이동 통신 단말에서의 다중 레벨 홍채 인식 장치 및 방법 | |
| KR101965749B1 (ko) | 카메라 기반의 비접촉식 지문인식 장치 | |
| Chourasiya et al. | Touch-less Biometric Fingerprint Authentication | |
| Vibert et al. | In what way is it possible to impersonate you bypassing fingerprint sensors? |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20001124 |
|
| PA0201 | Request for examination | ||
| N231 | Notification of change of applicant | ||
| PN2301 | Change of applicant |
Patent event date: 20020314 Comment text: Notification of Change of Applicant Patent event code: PN23011R01D |
|
| PG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20021021 Patent event code: PE09021S01D |
|
| E601 | Decision to refuse application | ||
| PE0601 | Decision on rejection of patent |
Patent event date: 20030113 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 20021021 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |
|
| AMND | Amendment | ||
| J201 | Request for trial against refusal decision | ||
| PJ0201 | Trial against decision of rejection |
Patent event date: 20030212 Comment text: Request for Trial against Decision on Refusal Patent event code: PJ02012R01D Patent event date: 20030113 Comment text: Decision to Refuse Application Patent event code: PJ02011S01I Appeal kind category: Appeal against decision to decline refusal Decision date: 20050530 Appeal identifier: 2003101000464 Request date: 20030212 |
|
| PB0901 | Examination by re-examination before a trial |
Comment text: Amendment to Specification, etc. Patent event date: 20030212 Patent event code: PB09011R02I Comment text: Request for Trial against Decision on Refusal Patent event date: 20030212 Patent event code: PB09011R01I |
|
| B601 | Maintenance of original decision after re-examination before a trial | ||
| PB0601 | Maintenance of original decision after re-examination before a trial |
Comment text: Report of Result of Re-examination before a Trial Patent event code: PB06011S01D Patent event date: 20030415 |
|
| J301 | Trial decision |
Free format text: TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20030212 Effective date: 20050530 Free format text: TRIAL NUMBER: 2003101000464; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20030212 Effective date: 20050530 |
|
| PJ1301 | Trial decision |
Patent event code: PJ13011S01D Patent event date: 20050531 Comment text: Trial Decision on Objection to Decision on Refusal Appeal kind category: Appeal against decision to decline refusal Request date: 20030212 Decision date: 20050530 Appeal identifier: 2003101000464 |