IN2014KN02362A - - Google Patents

Info

Publication number
IN2014KN02362A
IN2014KN02362A IN2362KON2014A IN2014KN02362A IN 2014KN02362 A IN2014KN02362 A IN 2014KN02362A IN 2362KON2014 A IN2362KON2014 A IN 2362KON2014A IN 2014KN02362 A IN2014KN02362 A IN 2014KN02362A
Authority
IN
India
Prior art keywords
pattern elements
pattern
elements
unit
adjacent
Prior art date
Application number
Inventor
Yukinaka Uchiyama
Fumihiro Hasegawa
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of IN2014KN02362A publication Critical patent/IN2014KN02362A/en

Links

Classifications

    • G06T5/80—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • 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
    • G06T2207/10004—Still image; Photographic image
    • 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
    • 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
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30204—Marker
    • G06T2207/30208—Marker matrix

Abstract

A pattern processing apparatus includes an acquisition unit, an adjacent element identification unit, a connection unit, and an assigning unit. The acquisition unit acquires a pattern image in which a plurality of pattern elements are arrayed in a grid, together with coordinate information of the pattern elements. The adjacent element identification unit identifies, for each of the pattern elements thus acquired, adjacent elements, in at least two directions, each having the shortest distance to the each of the pattern elements. The distances between the each of the pattern elements and other pattern elements are calculated using the coordinate information. The connection unit connects and groups, as a connected component, the pattern elements that are adjacent to one another. The assigning unit assigns position information in the array in order from the pattern element which is a starting point, among the pattern elements included in the connected component, according to a predetermined regularity.
IN2362KON2014 2012-05-22 2013-05-20 IN2014KN02362A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012116994 2012-05-22
JP2013043442A JP6065656B2 (en) 2012-05-22 2013-03-05 Pattern processing apparatus, pattern processing method, and pattern processing program
PCT/JP2013/064549 WO2013176278A1 (en) 2012-05-22 2013-05-20 Pattern processing apparatus, pattern processing method, and pattern processing program

Publications (1)

Publication Number Publication Date
IN2014KN02362A true IN2014KN02362A (en) 2015-05-01

Family

ID=49623956

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2362KON2014 IN2014KN02362A (en) 2012-05-22 2013-05-20

Country Status (7)

Country Link
US (1) US9454808B2 (en)
EP (1) EP2853089B1 (en)
JP (1) JP6065656B2 (en)
CN (1) CN104322057B (en)
AU (1) AU2013264673B2 (en)
IN (1) IN2014KN02362A (en)
WO (1) WO2013176278A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5924020B2 (en) * 2012-02-16 2016-05-25 セイコーエプソン株式会社 Projector and projector control method
EP3173979A1 (en) * 2015-11-30 2017-05-31 Delphi Technologies, Inc. Method for identification of characteristic points of a calibration pattern within a set of candidate points in an image of the calibration pattern
PT3513382T (en) 2016-09-14 2020-11-20 Fraunhofer Ges Forschung Pattern detection
DE102017004859B4 (en) 2017-05-19 2019-03-14 Daimler Ag Method for calibrating a projection geometry of a head-up display and associated calibration device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520682C2 (en) * 2001-12-06 2003-08-12 Anoto Ab Reconstruction of a virtual screen
US7019713B2 (en) * 2002-10-30 2006-03-28 The University Of Chicago Methods and measurement engine for aligning multi-projector display systems
JP4637845B2 (en) * 2004-09-01 2011-02-23 オリンパス株式会社 Geometric correction method in multi-projection system
TWI511122B (en) * 2006-08-11 2015-12-01 Geo Semiconductor Inc Calibration method and system to correct for image distortion of a camera
US8406562B2 (en) 2006-08-11 2013-03-26 Geo Semiconductor Inc. System and method for automated calibration and correction of display geometry and color
US7835592B2 (en) * 2006-10-17 2010-11-16 Seiko Epson Corporation Calibration technique for heads up display system
JP4906586B2 (en) * 2007-05-16 2012-03-28 三菱電機株式会社 Distortion correction apparatus and program
US20090153749A1 (en) * 2007-12-14 2009-06-18 Stephen Randall Mixon Portable projector background color correction scheme
US8325282B2 (en) * 2008-04-08 2012-12-04 Mitsubishi Electric Visual Solutions America, Inc. Television automatic geometry adjustment system
JP5256899B2 (en) 2008-07-18 2013-08-07 セイコーエプソン株式会社 Image correction apparatus, image correction method, projector and projection system
JP2011054068A (en) * 2009-09-04 2011-03-17 Fuji Xerox Co Ltd Image processing system, image processor, and program
JP5440250B2 (en) * 2010-02-26 2014-03-12 セイコーエプソン株式会社 Correction information calculation apparatus, image processing apparatus, image display system, and image correction method
EP2378394A3 (en) * 2010-04-15 2015-03-25 Electronics and Telecommunications Research Institute User interface device and method for recognizing user interaction using same
US9348111B2 (en) * 2010-08-24 2016-05-24 Apple Inc. Automatic detection of lens deviations
CN103098091B (en) 2010-09-08 2015-12-09 佳能株式会社 For carrying out the method and apparatus of 3D measurement by detecting predetermined pattern
JP2012118289A (en) * 2010-11-30 2012-06-21 Sanyo Electric Co Ltd Projection type image display device
JP6015037B2 (en) * 2012-03-08 2016-10-26 セイコーエプソン株式会社 Image processing apparatus, image processing method, and projector
KR20140081678A (en) * 2012-12-21 2014-07-01 소니 주식회사 Projection-type image display device, image projection method, and computer program

Also Published As

Publication number Publication date
CN104322057B (en) 2017-09-08
US20150131911A1 (en) 2015-05-14
WO2013176278A1 (en) 2013-11-28
AU2013264673A1 (en) 2014-11-20
EP2853089B1 (en) 2018-01-03
CN104322057A (en) 2015-01-28
AU2013264673B2 (en) 2015-12-03
US9454808B2 (en) 2016-09-27
JP6065656B2 (en) 2017-01-25
EP2853089A1 (en) 2015-04-01
EP2853089A4 (en) 2015-05-20
JP2014002718A (en) 2014-01-09

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