CN101589401B - 使用傅里叶变换的形状表示 - Google Patents

使用傅里叶变换的形状表示 Download PDF

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Publication number
CN101589401B
CN101589401B CN2008800023928A CN200880002392A CN101589401B CN 101589401 B CN101589401 B CN 101589401B CN 2008800023928 A CN2008800023928 A CN 2008800023928A CN 200880002392 A CN200880002392 A CN 200880002392A CN 101589401 B CN101589401 B CN 101589401B
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boundary
theta
sigma
cos
iris
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CN2008800023928A
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Chinese (zh)
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CN101589401A (zh
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唐纳德·马丁·门罗
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Brain Storm International Services Ltd
Fotonation Ltd
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    • 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]

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  • 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)
CN2008800023928A 2007-01-17 2008-01-15 使用傅里叶变换的形状表示 Active CN101589401B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/654,496 2007-01-17
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
CN101589401A CN101589401A (zh) 2009-11-25
CN101589401B true CN101589401B (zh) 2013-04-10

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Family Applications (1)

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CN2008800023928A Active CN101589401B (zh) 2007-01-17 2008-01-15 使用傅里叶变换的形状表示

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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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9846739B2 (en) 2006-10-23 2017-12-19 Fotonation Limited Fast database matching
US7809747B2 (en) * 2006-10-23 2010-10-05 Donald Martin Monro Fuzzy 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
WO2018207959A1 (ko) * 2017-05-11 2018-11-15 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

Citations (2)

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Publication number Priority date Publication date Assignee Title
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
CN1577723A (zh) * 2003-06-27 2005-02-09 株式会社东芝 图形处理方法与装置

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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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1577723A (zh) * 2003-06-27 2005-02-09 株式会社东芝 图形处理方法与装置

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
COSTA L DA F.Estimating derivatives and curvature of open curves.《PATTERN RECOGNITION》.ELSEVIER Science Ltd.,2002,第35卷(第11期),第2445-2451页. *
COSTA L DA F.Estimating derivatives and curvature of open curves.《PATTERN RECOGNITION》.ELSEVIER Science Ltd。,2002,第35卷(第11期),第2445-2451页.
EL OIRRAK A ET AL.Affine invariant descriptors using Fourier series.《PATTERN RECOGNITION LETTERS 23》.ELSEVIER, AMSTERDAM, NL,2002,第1109-1118页. *
HARRY J.WYATT.The Form of the Human Pupil.《VISION RESEARCH》.Elsevier Science Ltd,1995,第35卷(第14期),第2021-2036页. *
NIEMEL L P W ET AL.A NOVEL DESCRIPTION OF HANDWRITTE CHARACTERS FOR USE WITH GENERALISED FOURIER DESCRIPTORS.《EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES》.AEI, MILANO, IT,1992,第3卷(第5期),第455-464页.
NIEMEL L P W ET AL.A NOVEL DESCRIPTION OF HANDWRITTE CHARACTERS FOR USE WITH GENERALISED FOURIER DESCRIPTORS.《EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS AND RELATED TECHNOLOGIES》.AEI, MILANO, IT,1992,第3卷(第5期),第455-464页. *
SAIT SENER ET AL.Affine invariant fitting of algebraic curves using Fourier descriptors.《PATTERN ANALYSIS AND APPLICATIONS》.2005,第8卷(第1-2期),第72-83页. *

Also Published As

Publication number Publication date
WO2008087127A1 (en) 2008-07-24
JP2010517126A (ja) 2010-05-20
EP2104908A1 (en) 2009-09-30
ES2393260T3 (es) 2012-12-19
ZA200905324B (en) 2011-05-25
PL2104908T3 (pl) 2012-11-30
CN101589401A (zh) 2009-11-25
US8055074B2 (en) 2011-11-08
US20080170760A1 (en) 2008-07-17
EP2104908B1 (en) 2012-06-27

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