GB0329010D0 - Estimation of orientation of image features - Google Patents

Estimation of orientation of image features

Info

Publication number
GB0329010D0
GB0329010D0 GBGB0329010.3A GB0329010A GB0329010D0 GB 0329010 D0 GB0329010 D0 GB 0329010D0 GB 0329010 A GB0329010 A GB 0329010A GB 0329010 D0 GB0329010 D0 GB 0329010D0
Authority
GB
United Kingdom
Prior art keywords
estimation
orientation
image features
image
features
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
Application number
GBGB0329010.3A
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.)
Oxford University Innovation Ltd
Original Assignee
Oxford University Innovation Ltd
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 Oxford University Innovation Ltd filed Critical Oxford University Innovation Ltd
Priority to GBGB0329010.3A priority Critical patent/GB0329010D0/en
Publication of GB0329010D0 publication Critical patent/GB0329010D0/en
Priority to PCT/GB2004/005247 priority patent/WO2005059834A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20056—Discrete and fast Fourier transform, [DFT, FFT]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Image Analysis (AREA)
GBGB0329010.3A 2003-12-15 2003-12-15 Estimation of orientation of image features Ceased GB0329010D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0329010.3A GB0329010D0 (en) 2003-12-15 2003-12-15 Estimation of orientation of image features
PCT/GB2004/005247 WO2005059834A1 (en) 2003-12-15 2004-12-15 Estimation of orientation of image features

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0329010.3A GB0329010D0 (en) 2003-12-15 2003-12-15 Estimation of orientation of image features

Publications (1)

Publication Number Publication Date
GB0329010D0 true GB0329010D0 (en) 2004-01-14

Family

ID=30130241

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0329010.3A Ceased GB0329010D0 (en) 2003-12-15 2003-12-15 Estimation of orientation of image features

Country Status (2)

Country Link
GB (1) GB0329010D0 (en)
WO (1) WO2005059834A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449290B (en) 2006-05-19 2013-03-27 皇家飞利浦电子股份有限公司 Error adaptive functional imaging
US9058541B2 (en) 2012-09-21 2015-06-16 Fondation De L'institut De Recherche Idiap Object detection method, object detector and object detection computer program
CN111104822B (en) * 2018-10-25 2023-09-19 北京嘀嘀无限科技发展有限公司 Face orientation recognition method and device and electronic equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5956427A (en) * 1995-06-15 1999-09-21 California Institute Of Technology DFT encoding of oriented filter responses for rotation invariance and orientation estimation in digitized images

Also Published As

Publication number Publication date
WO2005059834A1 (en) 2005-06-30

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)