DE68913581D1 - Verfahren zur Erkennung der Kontur eines Strahlenfelds. - Google Patents

Verfahren zur Erkennung der Kontur eines Strahlenfelds.

Info

Publication number
DE68913581D1
DE68913581D1 DE89107158T DE68913581T DE68913581D1 DE 68913581 D1 DE68913581 D1 DE 68913581D1 DE 89107158 T DE89107158 T DE 89107158T DE 68913581 T DE68913581 T DE 68913581T DE 68913581 D1 DE68913581 D1 DE 68913581D1
Authority
DE
Germany
Prior art keywords
recognizing
contour
radiation field
radiation
field
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.)
Expired - Fee Related
Application number
DE89107158T
Other languages
English (en)
Other versions
DE68913581T2 (de
Inventor
Hideya C O Fuji Photo Fi Takeo
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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
Priority claimed from JP63188978A external-priority patent/JPH07101287B2/ja
Priority claimed from JP63217590A external-priority patent/JPH0810461B2/ja
Priority claimed from JP63217591A external-priority patent/JP2525650B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of DE68913581D1 publication Critical patent/DE68913581D1/de
Application granted granted Critical
Publication of DE68913581T2 publication Critical patent/DE68913581T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2012—Measuring radiation intensity with scintillation detectors using stimulable phosphors, e.g. stimulable phosphor sheets
    • G01T1/2014—Reading out of stimulable sheets, e.g. latent image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/12—Edge-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/194—Segmentation; Edge detection involving foreground-background segmentation
    • 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
    • G06T2207/10116—X-ray 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
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Analysis (AREA)
  • Radiography Using Non-Light Waves (AREA)
DE68913581T 1988-04-20 1989-04-20 Verfahren zur Erkennung der Kontur eines Strahlenfelds. Expired - Fee Related DE68913581T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9789888 1988-04-20
JP63188978A JPH07101287B2 (ja) 1988-04-20 1988-07-28 放射線照射野認識方法
JP63217590A JPH0810461B2 (ja) 1988-08-31 1988-08-31 照射野輪郭候補点正誤判定方法
JP63217591A JP2525650B2 (ja) 1988-08-31 1988-08-31 照射野輪郭候補点正誤判定方法

Publications (2)

Publication Number Publication Date
DE68913581D1 true DE68913581D1 (de) 1994-04-14
DE68913581T2 DE68913581T2 (de) 1994-06-16

Family

ID=27468583

Family Applications (2)

Application Number Title Priority Date Filing Date
DE68913581T Expired - Fee Related DE68913581T2 (de) 1988-04-20 1989-04-20 Verfahren zur Erkennung der Kontur eines Strahlenfelds.
DE68929160T Expired - Fee Related DE68929160T2 (de) 1988-04-20 1989-04-20 Verfahren zur Beurteilung, ob ein potentieller Konturpunkt eines Strahlenfeldes ein tatsächlicher Konturpunkt ist

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE68929160T Expired - Fee Related DE68929160T2 (de) 1988-04-20 1989-04-20 Verfahren zur Beurteilung, ob ein potentieller Konturpunkt eines Strahlenfeldes ein tatsächlicher Konturpunkt ist

Country Status (3)

Country Link
US (1) US5081580A (de)
EP (2) EP0342379B1 (de)
DE (2) DE68913581T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2856229B2 (ja) * 1991-09-18 1999-02-10 財団法人ニューメディア開発協会 画像切り出し箇所検出方法
US5764791A (en) * 1992-03-05 1998-06-09 Fuji Photo Film Co., Ltd. Method for determining the shape and location of an irradiation field
DE69312257T2 (de) * 1993-02-11 1998-01-29 Agfa Gevaert Nv Strahlungsfelderkennungsverfahren
JPH06314339A (ja) * 1993-04-27 1994-11-08 Honda Motor Co Ltd 画像の直線成分抽出装置
EP0742536B1 (de) * 1995-05-11 2000-09-13 Agfa-Gevaert N.V. Bestrahlungsfeldererkennungsverfahren
US5815591A (en) * 1996-07-10 1998-09-29 R2 Technology, Inc. Method and apparatus for fast detection of spiculated lesions in digital mammograms
JP3707871B2 (ja) 1996-08-16 2005-10-19 富士写真フイルム株式会社 放射線画像処理方法および装置
JP4083251B2 (ja) * 1996-08-16 2008-04-30 富士フイルム株式会社 照射野外画像処理方法および装置
US5901240A (en) * 1996-12-12 1999-05-04 Eastman Kodak Company Method for detecting the collimation field in a digital radiography
US6212291B1 (en) 1998-01-29 2001-04-03 Eastman Kodak Company Method for recognizing multiple irradiation fields in digital radiography
EP1672551A3 (de) * 1998-04-07 2006-08-30 Canon Kabushiki Kaisha Bildverarbeitungsverfahren, Vorrichtung und Speichermedium zur Erkennung von Strahlungsbereichen
EP1037166A1 (de) 1999-03-16 2000-09-20 Philips Corporate Intellectual Property GmbH Verfahren zur Detektion von Konturen in einem Röntgenbild
US7508970B2 (en) * 2004-12-24 2009-03-24 General Electric Company Systems, methods and apparatus for detecting a collimation edge in digital image radiography
FR2903211B1 (fr) * 2006-06-30 2009-03-06 Gen Electric Procedes et dispositifs de correction d'une mammographie a implant et de segmentation d'un implant

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101961A (en) * 1977-02-16 1978-07-18 Nasa Contour detector and data acquisition system for the left ventricular outline
WO1980001002A1 (en) * 1978-10-30 1980-05-15 Fujitsu Ltd Pattern inspection system
CA1203922A (en) * 1981-10-16 1986-04-29 Fuji Photo Film Co., Ltd. Radiation image read-out method and apparatus
JPS60156055A (ja) * 1984-01-26 1985-08-16 Fuji Photo Film Co Ltd 放射線画像情報読取条件決定方法
IT1179997B (it) * 1984-02-24 1987-09-23 Consiglio Nazionale Ricerche Procedimento ed apparecchiatura per il rilievo dell impronta lasciata in un provino nella misura della durezza alla penetrazione
DE3588169T2 (de) * 1984-07-31 1998-02-19 Fuji Photo Film Co Ltd Verfahren zur Detektion einer Bildbelichtungsfläche in einem Bildauslesevorgang
US4851984A (en) * 1987-08-03 1989-07-25 University Of Chicago Method and system for localization of inter-rib spaces and automated lung texture analysis in digital chest radiographs
US4983835A (en) * 1988-03-19 1991-01-08 Fuji Photo Film Co., Ltd. Method for detecting prospective contour points of an irradiation field

Also Published As

Publication number Publication date
EP0342379A1 (de) 1989-11-23
DE68929160D1 (de) 2000-03-30
EP0544644A2 (de) 1993-06-02
EP0544644A3 (de) 1997-12-17
DE68929160T2 (de) 2000-06-21
EP0544644B1 (de) 2000-02-23
EP0342379B1 (de) 1994-03-09
US5081580A (en) 1992-01-14
DE68913581T2 (de) 1994-06-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee