IL116573A - Leading algorithm for locating rings for image recovery - Google Patents

Leading algorithm for locating rings for image recovery

Info

Publication number
IL116573A
IL116573A IL11657395A IL11657395A IL116573A IL 116573 A IL116573 A IL 116573A IL 11657395 A IL11657395 A IL 11657395A IL 11657395 A IL11657395 A IL 11657395A IL 116573 A IL116573 A IL 116573A
Authority
IL
Israel
Prior art keywords
detector
vector
accordance
degradation
cell
Prior art date
Application number
IL11657395A
Other languages
English (en)
Hebrew (he)
Other versions
IL116573A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL116573A0 publication Critical patent/IL116573A0/xx
Publication of IL116573A publication Critical patent/IL116573A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph
    • 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

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
IL11657395A 1995-01-17 1995-12-26 Leading algorithm for locating rings for image recovery IL116573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/373,410 US5533081A (en) 1995-01-17 1995-01-17 Guided ringfix algorithm for image reconstruction

Publications (2)

Publication Number Publication Date
IL116573A0 IL116573A0 (en) 1996-03-31
IL116573A true IL116573A (en) 1998-08-16

Family

ID=23472290

Family Applications (1)

Application Number Title Priority Date Filing Date
IL11657395A IL116573A (en) 1995-01-17 1995-12-26 Leading algorithm for locating rings for image recovery

Country Status (4)

Country Link
US (1) US5533081A (ja)
JP (1) JPH08252249A (ja)
DE (1) DE19546378A1 (ja)
IL (1) IL116573A (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990087775A (ko) * 1996-03-13 1999-12-27 토비 에취. 쿠스머 컴퓨터 단층촬영 링 억제필터
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
DE69717780T2 (de) * 1996-07-30 2003-07-17 Koninklijke Philips Electronics N.V., Eindhoven Korrektur von ringförmigen bildartefakten
IL119283A0 (en) * 1996-09-19 1996-12-05 Elscint Ltd Adaptive filtering
DE19835451B4 (de) * 1997-08-20 2005-03-24 Siemens Ag Verfahren für einen Computertomographen zur Nachverarbeitung eines Schnittbildes und nach diesem Verfahren arbeitender Computertomograph
US6134292A (en) * 1998-07-13 2000-10-17 General Electric Company Methods and apparatus for reducing z-axis non-uniformity artifacts
US6327329B1 (en) * 1998-08-25 2001-12-04 General Electric Company Methods and apparatus for monitoring detector image quality
JP2001095793A (ja) * 1999-10-04 2001-04-10 Hitachi Medical Corp Ｘ線ｃｔ装置
JP2005176988A (ja) * 2003-12-17 2005-07-07 Ge Medical Systems Global Technology Co Llc データ補正方法およびｘ線ｃｔ装置
US7860341B2 (en) * 2006-07-21 2010-12-28 Varian Medical Systems, Inc. System and method for correcting for ring artifacts in an image
US7929659B2 (en) * 2008-07-24 2011-04-19 General Electric Company System and method for generating computed tomography images
US8929507B2 (en) * 2011-10-19 2015-01-06 Kabushiki Kaisha Toshiba Method and system for substantially reducing ring artifact based upon ring statistics
JP6201229B2 (ja) * 2013-03-29 2017-09-27 朝日レントゲン工業株式会社 画像再構成装置、画像再構成方法、及びｘ線撮影装置
EP3087376B1 (en) * 2013-12-23 2020-02-05 Johnson Matthey Public Limited Company Scanning method
CN120941702B (zh) * 2025-10-16 2025-12-16 南通瑞童塑业科技有限公司 一种用于风电机组塑料叶片生产用的吹塑检测方法及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1493593A (en) * 1974-01-31 1977-11-30 Emi Ltd Radiography
US4670840A (en) * 1983-03-09 1987-06-02 Elscint, Inc. Ring artifact correction for computerized tomography
US5301108A (en) * 1993-02-01 1994-04-05 General Electric Company Computed tomography system with z-axis correction
US5473656A (en) * 1994-09-15 1995-12-05 General Electric Company Computed tomography system with correction for z-axis detector non-uniformity

Also Published As

Publication number Publication date
JPH08252249A (ja) 1996-10-01
IL116573A0 (en) 1996-03-31
DE19546378A1 (de) 1996-07-18
US5533081A (en) 1996-07-02

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Legal Events

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KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees