FR2445536A1 - Procede et appareil pour traiter une image radiographique - Google Patents

Procede et appareil pour traiter une image radiographique

Info

Publication number
FR2445536A1
FR2445536A1 FR7931672A FR7931672A FR2445536A1 FR 2445536 A1 FR2445536 A1 FR 2445536A1 FR 7931672 A FR7931672 A FR 7931672A FR 7931672 A FR7931672 A FR 7931672A FR 2445536 A1 FR2445536 A1 FR 2445536A1
Authority
FR
France
Prior art keywords
dorg
radiogram
original
image
dus
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.)
Granted
Application number
FR7931672A
Other languages
English (en)
Other versions
FR2445536B1 (fr
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 JP16357578A external-priority patent/JPS5587953A/ja
Priority claimed from JP8779479A external-priority patent/JPS5611035A/ja
Priority claimed from JP15139779A external-priority patent/JPS5675136A/ja
Priority claimed from JP15139979A external-priority patent/JPS5675138A/ja
Priority claimed from JP15139579A external-priority patent/JPS5588742A/ja
Priority claimed from JP15140179A external-priority patent/JPS5675140A/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of FR2445536A1 publication Critical patent/FR2445536A1/fr
Application granted granted Critical
Publication of FR2445536B1 publication Critical patent/FR2445536B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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

Landscapes

  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Analysis (AREA)
  • Radiography Using Non-Light Waves (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

L'invention concerne la reproduction d'une image radiographique par un procédé et un appareil dans lequel on balaye un radiogramme original 1, on relève 4 l'information d'image enregistrée sur le radiogramme, on la transforme en un signal électrique et on reproduit une image sur un matériau enregistreur 13 au moyen d'un signal électrique. Selon l'invention, le procédé comporte une étape dans laquelle on effectue une opération représentée par une formule D' = Dorg + beta (Dorg - Dus) où Dorg est la densité d'image originale lue à partir du radiogramme original, beta est coefficient d'amplification, et Dus est une densité de masque de flou correspondant à une fréquence spatiale ultra-basse à chaque point de balayage. De cette manière, om amplifie le composant de fréquence au-dessus de la fréquence spatiale ultra-basse, ce qui améliore l'image.
FR797931672A 1978-12-26 1979-12-26 Procede et appareil pour traiter une image radiographique Expired FR2445536B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP16357578A JPS5587953A (en) 1978-12-26 1978-12-26 Processing method of x-ray image
JP8779479A JPS5611035A (en) 1979-07-11 1979-07-11 Method and device for treating xxray picture
JP15139779A JPS5675136A (en) 1979-11-22 1979-11-22 Xxray picture treating method
JP15139979A JPS5675138A (en) 1979-11-22 1979-11-22 Xxray picture treating method and its device
JP15139579A JPS5588742A (en) 1979-11-22 1979-11-22 Xxray picture treating method and its device
JP15140179A JPS5675140A (en) 1979-11-22 1979-11-22 Xxray picture treating method and its device

Publications (2)

Publication Number Publication Date
FR2445536A1 true FR2445536A1 (fr) 1980-07-25
FR2445536B1 FR2445536B1 (fr) 1989-12-22

Family

ID=27551723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797931672A Expired FR2445536B1 (fr) 1978-12-26 1979-12-26 Procede et appareil pour traiter une image radiographique

Country Status (4)

Country Link
US (1) US4317179A (fr)
DE (1) DE2952422C3 (fr)
FR (1) FR2445536B1 (fr)
NL (1) NL189232B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513749A2 (fr) * 1991-05-15 1992-11-19 Konica Corporation Appareil pour le traitement des signaux d'images radiographiques

Families Citing this family (69)

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Publication number Priority date Publication date Assignee Title
JPS56104645A (en) * 1979-12-25 1981-08-20 Fuji Photo Film Co Ltd Radiation picture treating method and its device
JPS5691735A (en) * 1979-12-25 1981-07-24 Fuji Photo Film Co Ltd Method and apparatus for treating xxray image
JPS6139573Y2 (fr) * 1981-06-19 1986-11-13
JPS58201169A (ja) * 1982-05-19 1983-11-22 Fuji Photo Film Co Ltd 画像デ−タ処理装置
JPS603269A (ja) * 1983-06-20 1985-01-09 Fuji Photo Film Co Ltd 画像の鮮鋭度強調方式
IL70214A (en) * 1983-11-13 1987-10-20 Elscint Ltd Image contrast enhancement arrangement
US4571635A (en) * 1984-02-17 1986-02-18 Minnesota Mining And Manufacturing Company Method of image enhancement by raster scanning
US4595958A (en) * 1984-08-24 1986-06-17 Minnesota Mining And Manufacturing Company Multiformat image recordation
US4817180A (en) * 1984-11-10 1989-03-28 Dainippon Screen Mfg. Co., Ltd. Image signal filtering
US4747052A (en) * 1984-11-14 1988-05-24 Philips Medical Systems, Inc. Radiation image processing
US5144687A (en) * 1985-03-02 1992-09-01 Kabushika Kaisha Toshiba Image processing apparatus including spatial shift variant filter
EP0198481B1 (fr) * 1985-04-17 1996-03-13 Hitachi, Ltd. Appareil de traitement d'image
US4903205A (en) * 1985-10-15 1990-02-20 Fuji Photo Film Co. Ltd. Method and apparatus for displaying radiation image, and method and apparatus for calculating unsharp mask signal used for the same
JPS63156475A (ja) * 1986-12-19 1988-06-29 Dainippon Screen Mfg Co Ltd 多階調画像読取装置
US4818649A (en) * 1987-04-01 1989-04-04 Sri International Method for intensification and reflective read-out of underexposed film, radiographs, and the like
US5042077A (en) * 1987-10-02 1991-08-20 General Electric Company Method of highlighting subtle contrast in graphical images
JPH0821073B2 (ja) * 1988-03-31 1996-03-04 富士写真フイルム株式会社 照射野絞り有無判定方法
JPH0690724B2 (ja) * 1988-07-29 1994-11-14 大日本スクリーン製造株式会社 画像の輪郭強調方法
JPH02202175A (ja) * 1989-01-30 1990-08-10 Dainippon Screen Mfg Co Ltd 画像走査記録装置における鮮鋭度強調方法
US5151947A (en) * 1989-11-28 1992-09-29 Konica Corporation Method and apparatus for processing radiation image
JP2663189B2 (ja) * 1990-01-29 1997-10-15 富士写真フイルム株式会社 画像のダイナミックレンジ圧縮処理方法
EP0445450A1 (fr) * 1990-03-07 1991-09-11 International Business Machines Corporation Appareil de traitement d'image transformant des intensités d'éléments d'image sur une plage limitée de valeurs d'affichage
JP2574923B2 (ja) * 1990-04-10 1997-01-22 大日本スクリーン製造株式会社 輪郭強調方法および画像処理装置
JP2707363B2 (ja) * 1990-10-20 1998-01-28 富士写真フイルム株式会社 放射線画像読取装置
JP3188491B2 (ja) * 1990-10-24 2001-07-16 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｘ線記録のダイナミック圧縮方法及びその装置
US5172419A (en) * 1991-03-05 1992-12-15 Lumisys, Inc. Medical image processing system
JP3039879B2 (ja) * 1991-04-17 2000-05-08 富士写真フイルム株式会社 放射線画像の周波数処理方法
DE4118153A1 (de) * 1991-06-03 1992-12-10 Philips Patentverwaltung Anordnung zum erzeugen von roentgenaufnahmen
US5799111A (en) * 1991-06-14 1998-08-25 D.V.P. Technologies, Ltd. Apparatus and methods for smoothing images
JP2849964B2 (ja) * 1991-12-26 1999-01-27 富士写真フイルム株式会社 画像処理方法および装置
JP2783033B2 (ja) * 1992-01-13 1998-08-06 日本電気株式会社 カラー画像の領域抽出方法および装置
JPH07248557A (ja) * 1994-03-10 1995-09-26 Konica Corp 放射線画像の処理方法
DE4415990A1 (de) 1994-05-06 1995-11-23 Philips Patentverwaltung Verfahren zur Wiedergabe insbesondere einer digitalen Röntgenaufnahme als sichtbares Bild sowie Anordnung zur Durchführung des Verfahrens
US5757807A (en) * 1994-09-27 1998-05-26 Nec Corporation Method of and apparatus for extracting or inserting a signal in a time division multiplex communication system
EP0726060B1 (fr) * 1995-01-23 2003-09-03 Fuji Photo Film Co., Ltd. Dispositif pour le diagnostic assisté par ordinateur
US5774599A (en) * 1995-03-14 1998-06-30 Eastman Kodak Company Method for precompensation of digital images for enhanced presentation on digital displays with limited capabilities
EP1134696A3 (fr) 1995-03-29 2004-08-18 Fuji Photo Film Co., Ltd. Procédé et appareil pour le traitement d'images
US6125214A (en) * 1995-03-29 2000-09-26 Fuji Photo Film Co., Ltd. Image processing method and apparatus
US5596190A (en) * 1995-06-02 1997-01-21 Minnesota Mining And Manufacturing Company Light collection device for a film image digitizer
EP1156451B1 (fr) * 1995-09-29 2004-06-02 Fuji Photo Film Co., Ltd. Méthode et appareil de traitement d'images
JPH09107479A (ja) * 1995-09-29 1997-04-22 Fuji Photo Film Co Ltd 画像処理方法および装置
EP0813336B1 (fr) * 1996-06-12 2007-08-08 FUJIFILM Corporation Procédé et appareil de traitement d'images
US5815591A (en) * 1996-07-10 1998-09-29 R2 Technology, Inc. Method and apparatus for fast detection of spiculated lesions in digital mammograms
JP3690882B2 (ja) * 1996-08-16 2005-08-31 富士写真フイルム株式会社 画像の強調処理方法および装置
JP3738791B2 (ja) * 1996-08-19 2006-01-25 富士写真フイルム株式会社 画像処理方法および装置
JP3696339B2 (ja) * 1996-08-19 2005-09-14 富士写真フイルム株式会社 画像処理方法および装置
JP3700804B2 (ja) * 1996-12-13 2005-09-28 富士写真フイルム株式会社 画像処理方法および装置
US5867606A (en) * 1997-08-12 1999-02-02 Hewlett-Packard Company Apparatus and method for determining the appropriate amount of sharpening for an image
EP1363240A3 (fr) 1997-08-29 2004-08-04 Fuji Photo Film Co., Ltd. Système pour le traitement d'images
US6410921B1 (en) * 1998-01-30 2002-06-25 Konica Corporation X-ray image recording system and x-ray image recording method
US6678420B1 (en) 1998-06-19 2004-01-13 Fuji Photo Film Co., Ltd. Method, apparatus and recording medium for image processing
US6424730B1 (en) 1998-11-03 2002-07-23 Eastman Kodak Company Medical image enhancement method for hardcopy prints
DE60022237T2 (de) 1999-01-14 2006-07-06 Fuji Photo Film Co., Ltd., Minami-Ashigara Bidverarbeitungsverfahren und -System und Aufzeichnungsmedium zur Durchfürung des Verfahrens
EP1059811A2 (fr) 1999-06-10 2000-12-13 Fuji Photo Film Co., Ltd. Procédé et système de traitement d'images, et support d'enregistrement
US7123759B1 (en) * 1999-06-30 2006-10-17 Fuji Photo Film Co., Ltd. Image transfer and output method and system using the same
US20010033638A1 (en) 2000-02-04 2001-10-25 Hitoshi Inoue Image acquisition method and apparatus
JP3999432B2 (ja) * 2000-02-08 2007-10-31 富士フイルム株式会社 画像処理方法および装置並びに記録媒体
EP1217826A3 (fr) * 2000-12-19 2005-05-25 Konica Corporation Appareil de traitement d'images
US6850651B2 (en) * 2001-07-02 2005-02-01 Corel Corporation Moiré correction in images
US6950211B2 (en) * 2001-07-05 2005-09-27 Corel Corporation Fine moire correction in images
US20030223549A1 (en) * 2001-11-23 2003-12-04 Robin Winsor Positioning stand for a radiography imaging device
DE10162422A1 (de) * 2001-12-18 2003-07-17 Zeiss Optronik Gmbh Visualisierung von extremen Kontrastunterschieden bei Kamerasystemen
US20030231321A1 (en) * 2002-03-25 2003-12-18 Tatsuya Aoyama Method of and system for image processing, method of and apparatus for image generation, and computer program
US7228004B2 (en) * 2002-09-05 2007-06-05 Eastman Kodak Company Method for sharpening a digital image
US20050018889A1 (en) * 2003-07-09 2005-01-27 Jianying Li Systems and methods for filtering images
US7333671B2 (en) * 2003-09-30 2008-02-19 Benq Corporation Image processing method to improve image sharpness
CN100502782C (zh) * 2004-12-10 2009-06-24 柯尼卡美能达医疗印刷器材株式会社 图像处理装置和图像处理方法
JP2013232109A (ja) * 2012-04-27 2013-11-14 Ricoh Co Ltd 撮像装置、撮像システム及び撮像方法
EP3620821A1 (fr) * 2018-09-05 2020-03-11 Infineon Technologies AG Caméra de mesure du temps de vol et procédé d'étalonnage d'une caméra de mesure du temps de vol

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US3996421A (en) * 1975-09-02 1976-12-07 Hughes Aircraft Company Television display utilizing local area brightness control

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US2962548A (en) * 1957-08-14 1960-11-29 Rudolf Hell Kommanditgesellsch Device for increasing contrasts at tone value leaps and contours in printing forms
GB861724A (en) * 1958-07-04 1961-02-22 Times Facsimile Corp Method and apparatus for facsimile telegnosis
DE1268657B (de) * 1965-07-14 1968-05-22 Hell Rudolf Dr Ing Fa Verfahren zur Steigerung der Schaerfe bei der Aufzeichnung der Reproduktionen lichtelektrisch abgetasteter Bildvorlagen
US3723649A (en) * 1971-04-27 1973-03-27 Electronic Image Syst Corp Adaptive binary state decision system
US3996421A (en) * 1975-09-02 1976-12-07 Hughes Aircraft Company Television display utilizing local area brightness control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0513749A2 (fr) * 1991-05-15 1992-11-19 Konica Corporation Appareil pour le traitement des signaux d'images radiographiques
EP0513749A3 (en) * 1991-05-15 1993-02-10 Konica Corporation Processing apparatus for radiographic image signals
US5319719A (en) * 1991-05-15 1994-06-07 Konica Corporation Processing apparatus for radiographic image signals

Also Published As

Publication number Publication date
NL7909328A (nl) 1980-06-30
DE2952422A1 (de) 1980-08-28
FR2445536B1 (fr) 1989-12-22
NL189232B (nl) 1992-09-16
DE2952422C2 (de) 1993-12-23
US4317179A (en) 1982-02-23
DE2952422C3 (de) 1993-12-23

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