ES2393260T3 - Representación de una forma con la ayuda de Transformadas de Fourier - Google Patents

Representación de una forma con la ayuda de Transformadas de Fourier Download PDF

Info

Publication number
ES2393260T3
ES2393260T3 ES08701481T ES08701481T ES2393260T3 ES 2393260 T3 ES2393260 T3 ES 2393260T3 ES 08701481 T ES08701481 T ES 08701481T ES 08701481 T ES08701481 T ES 08701481T ES 2393260 T3 ES2393260 T3 ES 2393260T3
Authority
ES
Spain
Prior art keywords
contour
iris
points
spaced
squares
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.)
Active
Application number
ES08701481T
Other languages
English (en)
Spanish (es)
Inventor
Donald Martin Monro
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2393260T3 publication Critical patent/ES2393260T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G06V40/18—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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Collating Specific Patterns (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
ES08701481T 2007-01-17 2008-01-15 Representación de una forma con la ayuda de Transformadas de Fourier Active ES2393260T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US654496 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 (1)

Publication Number Publication Date
ES2393260T3 true ES2393260T3 (es) 2012-12-19

Family

ID=39144282

Family Applications (1)

Application Number Title Priority Date Filing Date
ES08701481T Active ES2393260T3 (es) 2007-01-17 2008-01-15 Representación de una forma con la ayuda de Transformadas de Fourier

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)

* Cited by examiner, † Cited by third party
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
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CN101589401B (zh) 2013-04-10
EP2104908A1 (en) 2009-09-30
US8055074B2 (en) 2011-11-08
PL2104908T3 (pl) 2012-11-30
CN101589401A (zh) 2009-11-25
US20080170760A1 (en) 2008-07-17
JP2010517126A (ja) 2010-05-20
EP2104908B1 (en) 2012-06-27
WO2008087127A1 (en) 2008-07-24
ZA200905324B (en) 2011-05-25

Similar Documents

Publication Publication Date Title
CN101589401B (zh) 使用傅里叶变换的形状表示
Lee et al. A catalog of optically selected cores
Brown Inherent bias and noise in the Hough transform
EP2102793B1 (en) Shape representation using cosine transforms
Krishnapuram et al. Fuzzy and possibilistic shell clustering algorithms and their application to boundary detection and surface approximation. II
Keselman et al. Many-to-many graph matching via metric embedding
KR20050025927A (ko) 홍채인식을 위한 동공 검출 방법 및 형상기술자 추출방법과 그를 이용한 홍채 특징 추출 장치 및 그 방법과홍채인식 시스템 및 그 방법
US20170094750A1 (en) Lighting system that self detects the relative physical arrangement of its sources
EP3493154A1 (en) Segmentation system for segmenting an object in an image
JP2019003527A (ja) 特徴抽出装置、物体検出装置、方法、及びプログラム
US20170140193A1 (en) Minutiae Grouping for Distorted Fingerprint Matching
US10311300B2 (en) Iris recognition systems and methods of using a statistical model of an iris for authentication
Suger et al. An approach to solving large-scale slam problems with a small memory footprint
Marošević et al. Multiple ellipse fitting by center-based clustering
US20200160037A1 (en) Method and apparatus for pattern recognition
ES2312010T3 (es) Analisis de patrones.
US20040252865A1 (en) Ring location
Batabyal et al. Elastic path2path: Automated morphological classification of neurons by elastic path matching
Bal et al. Skeleton-based recognition of shapes in images via longest path matching
Bao et al. A robust recognition and accurate locating method for circular coded diagonal target
Kaliszewska et al. On representative functions method for clustering of 2D contours with application to pottery fragments typology
US12406510B2 (en) Method for the detection, segmentation and morphological mapping on neural cell images of the whole brain
Yuan et al. Efficient local reflectional symmetries detection
Chun et al. Space-efficient and data-sensitive polygon reconstruction algorithms from visibility angle information
Murtagh et al. A curve matching problem in astronomy