DE69717780D1 - Korrektur von ringförmigen bildartefakten - Google Patents

Korrektur von ringförmigen bildartefakten

Info

Publication number
DE69717780D1
DE69717780D1 DE69717780T DE69717780T DE69717780D1 DE 69717780 D1 DE69717780 D1 DE 69717780D1 DE 69717780 T DE69717780 T DE 69717780T DE 69717780 T DE69717780 T DE 69717780T DE 69717780 D1 DE69717780 D1 DE 69717780D1
Authority
DE
Germany
Prior art keywords
brightness values
image
correction
ring
shaped image
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 - Lifetime
Application number
DE69717780T
Other languages
English (en)
Other versions
DE69717780T2 (de
Inventor
Jan Timmer
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69717780D1 publication Critical patent/DE69717780D1/de
Publication of DE69717780T2 publication Critical patent/DE69717780T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • 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
    • G06T2207/10081—Computed x-ray tomography [CT]
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
DE69717780T 1996-07-30 1997-07-04 Korrektur von ringförmigen bildartefakten Expired - Lifetime DE69717780T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96202151 1996-07-30
PCT/IB1997/000834 WO1998005003A1 (en) 1996-07-30 1997-07-04 Correction for ring-like image artefacts

Publications (2)

Publication Number Publication Date
DE69717780D1 true DE69717780D1 (de) 2003-01-23
DE69717780T2 DE69717780T2 (de) 2003-07-17

Family

ID=8224245

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69717780T Expired - Lifetime DE69717780T2 (de) 1996-07-30 1997-07-04 Korrektur von ringförmigen bildartefakten

Country Status (5)

Country Link
US (1) US5825841A (de)
EP (1) EP0857337B1 (de)
JP (1) JP4430743B2 (de)
DE (1) DE69717780T2 (de)
WO (1) WO1998005003A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2349731B (en) 1998-01-28 2003-06-04 Ht Medical Systems Inc Interface device and method for interfacing instruments to vascular access simulation systems
EP1046134B1 (de) * 1998-10-19 2003-12-03 Koninklijke Philips Electronics N.V. Röntgenuntersuchungsvorrichtung mit regelung der strahlendosis
JP2001095793A (ja) * 1999-10-04 2001-04-10 Hitachi Medical Corp Ｘ線ｃｔ装置
DE10106907C2 (de) * 2001-02-13 2003-06-26 Siemens Ag Röntgendiagnostikeinrichtung mit Mitteln und Verfahren zur Korrektur von Kometenartefakten
US6850589B2 (en) * 2002-03-27 2005-02-01 Agilent Technologies, Inc. Tomography of curved surfaces
DE10320233B4 (de) * 2003-05-07 2012-11-08 "Stiftung Caesar" (Center Of Advanced European Studies And Research) Verfahren zur Reduzierung von durch Artefakte hervorgerufene Störungen
US7860341B2 (en) * 2006-07-21 2010-12-28 Varian Medical Systems, Inc. System and method for correcting for ring artifacts in an image
JP5023281B2 (ja) 2008-01-11 2012-09-12 株式会社島津製作所 画像処理方法、その装置並びに断層撮影装置
US8260017B2 (en) * 2009-02-19 2012-09-04 Kabushiki Kaisha Toshiba Rotation center identifying method and apparatus, ring artifact correction method, and X-ray diagnostic apparatus employing the same
DE102012205769A1 (de) 2012-04-10 2013-10-10 Siemens Aktiengesellschaft Quantifizierung von Ringartefakten
KR101462402B1 (ko) * 2014-03-25 2014-11-17 연세대학교 산학협력단 심혈관oct영상생성방법 및 이를 이용한 스텐트 검출방법
DE102018201249A1 (de) 2018-01-26 2019-08-01 Carl Zeiss Industrielle Messtechnik Gmbh Verfahren und Anordnung zur Detektorkorrektur für das Erzeugen von Objekt-Durchstrahlungsbildern
WO2021045019A1 (ja) * 2019-09-04 2021-03-11 株式会社ニデック 眼科画像処理プログラムおよび眼科画像処理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3107170A1 (de) * 1981-02-26 1982-09-09 Philips Patentverwaltung Gmbh, 2000 Hamburg "vorrichtung zur verminderung von ringartefakten in ct-bildern"
US4670840A (en) * 1983-03-09 1987-06-02 Elscint, Inc. Ring artifact correction for computerized tomography
US5229934A (en) * 1990-06-18 1993-07-20 Picker International, Inc. Post-processing technique for cleaning up streaks and artifacts in diagnostic images
US5533081A (en) * 1995-01-17 1996-07-02 General Electric Company Guided ringfix algorithm for image reconstruction

Also Published As

Publication number Publication date
EP0857337A1 (de) 1998-08-12
DE69717780T2 (de) 2003-07-17
US5825841A (en) 1998-10-20
JP4430743B2 (ja) 2010-03-10
WO1998005003A1 (en) 1998-02-05
EP0857337B1 (de) 2002-12-11
JPH11514121A (ja) 1999-11-30

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Legal Events

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