JP2010517126A - フーリエ変換を使用する形状表現 - Google Patents
フーリエ変換を使用する形状表現 Download PDFInfo
- Publication number
- JP2010517126A JP2010517126A JP2009545905A JP2009545905A JP2010517126A JP 2010517126 A JP2010517126 A JP 2010517126A JP 2009545905 A JP2009545905 A JP 2009545905A JP 2009545905 A JP2009545905 A JP 2009545905A JP 2010517126 A JP2010517126 A JP 2010517126A
- Authority
- JP
- Japan
- Prior art keywords
- boundary
- matrix
- point
- iris
- approximate
- 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
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Images
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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/193—Preprocessing; Feature extraction
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
- G06V10/478—Contour-based spectral representations or scale-space representations, e.g. by Fourier analysis, wavelet analysis or curvature scale-space [CSS]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Collating Specific Patterns (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/654,496 US8055074B2 (en) | 2007-01-17 | 2007-01-17 | Shape representation using fourier transforms |
| PCT/EP2008/050370 WO2008087127A1 (en) | 2007-01-17 | 2008-01-15 | Shape representation using fourier transforms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010517126A true JP2010517126A (ja) | 2010-05-20 |
| JP2010517126A5 JP2010517126A5 (enExample) | 2012-03-01 |
Family
ID=39144282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009545905A Pending JP2010517126A (ja) | 2007-01-17 | 2008-01-15 | フーリエ変換を使用する形状表現 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8055074B2 (enExample) |
| EP (1) | EP2104908B1 (enExample) |
| JP (1) | JP2010517126A (enExample) |
| CN (1) | CN101589401B (enExample) |
| ES (1) | ES2393260T3 (enExample) |
| PL (1) | PL2104908T3 (enExample) |
| WO (1) | WO2008087127A1 (enExample) |
| ZA (1) | ZA200905324B (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7809747B2 (en) * | 2006-10-23 | 2010-10-05 | Donald Martin Monro | Fuzzy database matching |
| US9846739B2 (en) | 2006-10-23 | 2017-12-19 | Fotonation Limited | Fast database matching |
| US20100278394A1 (en) * | 2008-10-29 | 2010-11-04 | Raguin Daniel H | Apparatus for Iris Capture |
| US8317325B2 (en) | 2008-10-31 | 2012-11-27 | Cross Match Technologies, Inc. | Apparatus and method for two eye imaging for iris identification |
| US8577094B2 (en) | 2010-04-09 | 2013-11-05 | Donald Martin Monro | Image template masking |
| JP4893863B1 (ja) * | 2011-03-11 | 2012-03-07 | オムロン株式会社 | 画像処理装置、および画像処理方法 |
| JP4893862B1 (ja) * | 2011-03-11 | 2012-03-07 | オムロン株式会社 | 画像処理装置、および画像処理方法 |
| US9854159B2 (en) | 2012-07-20 | 2017-12-26 | Pixart Imaging Inc. | Image system with eye protection |
| TWI471808B (zh) * | 2012-07-20 | 2015-02-01 | Pixart Imaging Inc | 瞳孔偵測裝置 |
| JP6497162B2 (ja) * | 2015-03-26 | 2019-04-10 | オムロン株式会社 | 画像処理装置および画像処理方法 |
| KR20190107738A (ko) * | 2017-05-11 | 2019-09-20 | 주식회사 룩시드랩스 | 이미지 처리 장치 및 방법 |
| US12284058B2 (en) * | 2022-06-16 | 2025-04-22 | Samsung Electronics Co., Ltd. | Self-tuning fixed-point least-squares solver |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6714665B1 (en) * | 1994-09-02 | 2004-03-30 | Sarnoff Corporation | Fully automated iris recognition system utilizing wide and narrow fields of view |
| US6144754A (en) * | 1997-03-28 | 2000-11-07 | Oki Electric Industry Co., Ltd. | Method and apparatus for identifying individuals |
| US6801661B1 (en) | 2001-02-15 | 2004-10-05 | Eastman Kodak Company | Method and system for archival and retrieval of images based on the shape properties of identified segments |
| JP4068596B2 (ja) * | 2003-06-27 | 2008-03-26 | 株式会社東芝 | 図形処理方法、図形処理装置およびコンピュータ読取り可能な図形処理プログラム |
| KR20050025927A (ko) | 2003-09-08 | 2005-03-14 | 유웅덕 | 홍채인식을 위한 동공 검출 방법 및 형상기술자 추출방법과 그를 이용한 홍채 특징 추출 장치 및 그 방법과홍채인식 시스템 및 그 방법 |
-
2007
- 2007-01-17 US US11/654,496 patent/US8055074B2/en active Active
-
2008
- 2008-01-15 CN CN2008800023928A patent/CN101589401B/zh active Active
- 2008-01-15 ES ES08701481T patent/ES2393260T3/es active Active
- 2008-01-15 JP JP2009545905A patent/JP2010517126A/ja active Pending
- 2008-01-15 EP EP08701481A patent/EP2104908B1/en active Active
- 2008-01-15 PL PL08701481T patent/PL2104908T3/pl unknown
- 2008-01-15 WO PCT/EP2008/050370 patent/WO2008087127A1/en not_active Ceased
-
2009
- 2009-07-30 ZA ZA2009/05324A patent/ZA200905324B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP2104908B1 (en) | 2012-06-27 |
| CN101589401A (zh) | 2009-11-25 |
| US20080170760A1 (en) | 2008-07-17 |
| CN101589401B (zh) | 2013-04-10 |
| ZA200905324B (en) | 2011-05-25 |
| ES2393260T3 (es) | 2012-12-19 |
| PL2104908T3 (pl) | 2012-11-30 |
| EP2104908A1 (en) | 2009-09-30 |
| WO2008087127A1 (en) | 2008-07-24 |
| US8055074B2 (en) | 2011-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101215 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20101215 |
|
| A072 | Dismissal of procedure [no reply to invitation to correct request for examination] |
Free format text: JAPANESE INTERMEDIATE CODE: A073 Effective date: 20120509 |