CA2918947C - Keypoint identification - Google Patents

Keypoint identification Download PDF

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Publication number
CA2918947C
CA2918947C CA2918947A CA2918947A CA2918947C CA 2918947 C CA2918947 C CA 2918947C CA 2918947 A CA2918947 A CA 2918947A CA 2918947 A CA2918947 A CA 2918947A CA 2918947 C CA2918947 C CA 2918947C
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CA
Canada
Prior art keywords
pixel
image
filtering
value
filtering parameter
Prior art date
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Active
Application number
CA2918947A
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English (en)
French (fr)
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CA2918947A1 (en
Inventor
Massimo Balestri
Gianluca Francini
Skjalg Lepsoy
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.)
TIM SpA
Original Assignee
Telecom Italia SpA
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Publication date
Application filed by Telecom Italia SpA filed Critical Telecom Italia SpA
Publication of CA2918947A1 publication Critical patent/CA2918947A1/en
Application granted granted Critical
Publication of CA2918947C publication Critical patent/CA2918947C/en
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    • 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
    • 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
    • G06V10/462—Salient features, e.g. scale invariant feature transforms [SIFT]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/10—Image enhancement or restoration using non-spatial domain filtering
    • 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
    • G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
    • G06V10/443—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by matching or filtering
    • 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
    • G06V10/56—Extraction of image or video features relating to colour

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Dc Digital Transmission (AREA)
CA2918947A 2013-07-24 2014-07-23 Keypoint identification Active CA2918947C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2013A001244 2013-07-24
IT001244A ITMI20131244A1 (it) 2013-07-24 2013-07-24 Identificazione di keypoint
PCT/EP2014/065808 WO2015011185A1 (en) 2013-07-24 2014-07-23 Keypoint identification

Publications (2)

Publication Number Publication Date
CA2918947A1 CA2918947A1 (en) 2015-01-29
CA2918947C true CA2918947C (en) 2022-07-12

Family

ID=49118659

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2918947A Active CA2918947C (en) 2013-07-24 2014-07-23 Keypoint identification

Country Status (12)

Country Link
US (1) US10152646B2 (https=)
EP (1) EP3025273B1 (https=)
JP (1) JP6499647B2 (https=)
KR (1) KR102195826B1 (https=)
CN (1) CN105493105B (https=)
BR (1) BR112016001377B1 (https=)
CA (1) CA2918947C (https=)
ES (1) ES2939244T3 (https=)
IT (1) ITMI20131244A1 (https=)
MX (1) MX350657B (https=)
RU (1) RU2663356C2 (https=)
WO (1) WO2015011185A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9576218B2 (en) * 2014-11-04 2017-02-21 Canon Kabushiki Kaisha Selecting features from image data
WO2017114581A1 (en) 2015-12-30 2017-07-06 Telecom Italia S.P.A. System for generating 3d images for image recognition based positioning
EP3239896B1 (en) 2016-04-28 2018-11-28 Joanneum Research Forschungsgesellschaft mbH Data structure for describing an image sequence, and methods for extracting and matching these data structures
CN106056636B (zh) * 2016-05-31 2019-04-02 公安部禁毒情报技术中心 一种冰毒片剂的标识特征信息提取方法
CN108648206B (zh) * 2018-04-28 2022-09-16 成都信息工程大学 一种Robert边缘检测膜计算系统及方法
CN111080674B (zh) * 2019-12-18 2023-11-14 上海无线电设备研究所 一种基于混合高斯模型的多目标isar关键点提取方法
CN113627528B (zh) * 2021-08-11 2024-09-06 江南大学 一种基于人眼视觉深度学习的国画所属画家自动识别方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6711293B1 (en) 1999-03-08 2004-03-23 The University Of British Columbia Method and apparatus for identifying scale invariant features in an image and use of same for locating an object in an image
US20050289519A1 (en) * 2004-06-24 2005-12-29 Apple Computer, Inc. Fast approximation functions for image processing filters
JP4605445B2 (ja) * 2004-08-24 2011-01-05 ソニー株式会社 画像処理装置および方法、記録媒体、並びにプログラム
US7751639B1 (en) * 2005-04-20 2010-07-06 University Of East Anglia Obtaining intrinsic images
KR101420549B1 (ko) * 2009-12-02 2014-07-16 퀄컴 인코포레이티드 쿼리 및 모델 이미지들에서 검출된 키포인트들을 클러스터링함에 따른 특징 매칭 방법, 디바이스 그리고 프로세서 판독가능 매체
US8582889B2 (en) * 2010-01-08 2013-11-12 Qualcomm Incorporated Scale space normalization technique for improved feature detection in uniform and non-uniform illumination changes
US9530073B2 (en) * 2010-04-20 2016-12-27 Qualcomm Incorporated Efficient descriptor extraction over multiple levels of an image scale space
RU2438174C1 (ru) * 2010-06-15 2011-12-27 Общество с ограниченной ответственностью "Томсклаб" Способ распознавания объектов
US9141871B2 (en) * 2011-10-05 2015-09-22 Carnegie Mellon University Systems, methods, and software implementing affine-invariant feature detection implementing iterative searching of an affine space

Also Published As

Publication number Publication date
JP6499647B2 (ja) 2019-04-10
WO2015011185A1 (en) 2015-01-29
US20160155014A1 (en) 2016-06-02
JP2016527634A (ja) 2016-09-08
KR20160034928A (ko) 2016-03-30
EP3025273B1 (en) 2022-11-30
MX350657B (es) 2017-09-12
RU2016103624A3 (https=) 2018-05-21
EP3025273A1 (en) 2016-06-01
BR112016001377B1 (pt) 2023-01-24
KR102195826B1 (ko) 2020-12-29
RU2663356C2 (ru) 2018-08-03
CN105493105A (zh) 2016-04-13
BR112016001377A2 (https=) 2017-08-29
ITMI20131244A1 (it) 2015-01-25
US10152646B2 (en) 2018-12-11
ES2939244T3 (es) 2023-04-20
MX2016000994A (es) 2016-04-19
CA2918947A1 (en) 2015-01-29
CN105493105B (zh) 2018-12-28
RU2016103624A (ru) 2017-08-29

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