NL1005511A1 - Ringonderdrukkingsfilter voor gebruik in gecomputeriseerde tomografiestelsels. - Google Patents

Ringonderdrukkingsfilter voor gebruik in gecomputeriseerde tomografiestelsels.

Info

Publication number
NL1005511A1
NL1005511A1 NL1005511A NL1005511A NL1005511A1 NL 1005511 A1 NL1005511 A1 NL 1005511A1 NL 1005511 A NL1005511 A NL 1005511A NL 1005511 A NL1005511 A NL 1005511A NL 1005511 A1 NL1005511 A1 NL 1005511A1
Authority
NL
Netherlands
Prior art keywords
computerized tomography
suppression filter
tomography systems
ring suppression
ring
Prior art date
Application number
NL1005511A
Other languages
English (en)
Other versions
NL1005511C2 (nl
Inventor
Bernard Marshall Gordon
Lai Ching-Ming
Original Assignee
Analogic Corp
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 Analogic Corp filed Critical Analogic Corp
Publication of NL1005511A1 publication Critical patent/NL1005511A1/nl
Application granted granted Critical
Publication of NL1005511C2 publication Critical patent/NL1005511C2/nl

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
NL1005511A 1996-03-13 1997-03-12 Gecomputeriseerd tomografiestelsel met ringartefactonderdrukking. NL1005511C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61454196A 1996-03-13 1996-03-13
US61454196 1996-03-13

Publications (2)

Publication Number Publication Date
NL1005511A1 true NL1005511A1 (nl) 1997-09-17
NL1005511C2 NL1005511C2 (nl) 1998-04-06

Family

ID=24461696

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1005511A NL1005511C2 (nl) 1996-03-13 1997-03-12 Gecomputeriseerd tomografiestelsel met ringartefactonderdrukking.

Country Status (8)

Country Link
US (1) US5745542A (nl)
JP (1) JPH11511375A (nl)
KR (1) KR19990087775A (nl)
CN (1) CN1218377A (nl)
BR (1) BR9708163A (nl)
DE (1) DE19781653T1 (nl)
NL (1) NL1005511C2 (nl)
WO (1) WO1997033517A1 (nl)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11511376A (ja) * 1996-03-13 1999-10-05 アナロジック コーポレーション コンピュータ・トモグラフィの自己校正リング抑制フィルタ
US8303576B2 (en) * 1998-02-24 2012-11-06 Hansen Medical, Inc. Interchangeable surgical instrument
US6115445A (en) * 1999-01-12 2000-09-05 Analogic Corporation Progressive correction of ring artifacts in a computed tomography system
US6707952B1 (en) 2000-05-30 2004-03-16 Sharp Laboratories Of America, Inc. Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
US7440635B2 (en) * 2000-05-30 2008-10-21 Sharp Laboratories Of America, Inc. Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
DE10155089C1 (de) * 2001-11-09 2003-06-18 Siemens Ag Verfahren zur Entfernung von Ringen und Teilringen in Computertomographie-Bildern
US7050616B2 (en) * 2002-04-01 2006-05-23 Ge Medical Systems Global Technology Company, Llc Data transmission scheme and system for image reconstruction
US20050226365A1 (en) * 2004-03-30 2005-10-13 Kabushiki Kaisha Toshiba Radius-in-image dependent detector row filtering for windmill artifact reduction
US7991242B2 (en) 2005-05-11 2011-08-02 Optosecurity Inc. Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality
US20070041613A1 (en) * 2005-05-11 2007-02-22 Luc Perron Database of target objects suitable for use in screening receptacles or people and method and apparatus for generating same
WO2006119603A1 (en) 2005-05-11 2006-11-16 Optosecurity Inc. Method and system for screening luggage items, cargo containers or persons
DE102005050917A1 (de) * 2005-10-24 2007-04-26 Siemens Ag Verfahren und Tomographiegerät zur Rekonstruktion einer tomographischen Darstellung eines Objektes
CN100565336C (zh) * 2005-11-21 2009-12-02 清华大学 成像***
DE102006021373A1 (de) * 2006-05-08 2007-11-15 Siemens Ag Röntgendiagnostikeinrichtung
US7899232B2 (en) 2006-05-11 2011-03-01 Optosecurity Inc. Method and apparatus for providing threat image projection (TIP) in a luggage screening system, and luggage screening system implementing same
WO2007141689A1 (en) * 2006-06-02 2007-12-13 Philips Intellectual Property & Standards Gmbh X-ray image apparatus and device for and method of calibrating an x-ray image apparatus
US8494210B2 (en) 2007-03-30 2013-07-23 Optosecurity Inc. User interface for use in security screening providing image enhancement capabilities and apparatus for implementing same
US7860341B2 (en) * 2006-07-21 2010-12-28 Varian Medical Systems, Inc. System and method for correcting for ring artifacts in an image
EP1909227B1 (en) * 2006-10-03 2018-06-27 Vestel Elektronik Sanayi ve Ticaret A.S. Method of and apparatus for minimizing ringing artifacts in an input image
JP5538684B2 (ja) * 2008-03-13 2014-07-02 キヤノン株式会社 画像処理装置、画像処理方法、プログラム、及び記憶媒体
US7929659B2 (en) * 2008-07-24 2011-04-19 General Electric Company System and method for generating computed tomography images
KR101973221B1 (ko) 2011-09-07 2019-04-26 라피스캔 시스템스, 인코포레이티드 적하목록 데이터를 이미징/검출 프로세싱에 통합시키는 x-선 검사시스템
WO2017146930A1 (en) 2016-02-22 2017-08-31 Rapiscan Systems, Inc. Systems and methods for detecting threats and contraband in cargo
CN111096761B (zh) * 2018-10-29 2024-03-08 上海西门子医疗器械有限公司 修正楔形滤波器散射的方法、装置和相关设备
CN110755100B (zh) * 2019-10-17 2023-07-04 沈阳智核医疗科技有限公司 校正方法、装置、控制台设备及pet***
CN111053568B (zh) * 2019-12-30 2021-10-08 苏州瑞派宁科技有限公司 Ct图像中环形伪影的校正方法、装置及计算机存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4670840A (en) * 1983-03-09 1987-06-02 Elscint, Inc. Ring artifact correction for computerized tomography
US4682291A (en) * 1984-10-26 1987-07-21 Elscint Ltd. Noise artifacts reduction
US5450461A (en) * 1993-12-30 1995-09-12 General Electric Company Self-calibrating computed tomography imaging system
US5473656A (en) * 1994-09-15 1995-12-05 General Electric Company Computed tomography system with correction for z-axis detector non-uniformity
US5533081A (en) * 1995-01-17 1996-07-02 General Electric Company Guided ringfix algorithm for image reconstruction

Also Published As

Publication number Publication date
US5745542A (en) 1998-04-28
WO1997033517A1 (en) 1997-09-18
BR9708163A (pt) 1999-07-27
CN1218377A (zh) 1999-06-02
KR19990087775A (ko) 1999-12-27
DE19781653T1 (de) 1999-06-17
JPH11511375A (ja) 1999-10-05
NL1005511C2 (nl) 1998-04-06

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Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
PD2B A search report has been drawn up
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20021001