NL192190C - Werkwijzen voor het verbeteren van de beelden van een CT aftastinrichting. - Google Patents

Werkwijzen voor het verbeteren van de beelden van een CT aftastinrichting. Download PDF

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Publication number
NL192190C
NL192190C NL8400710A NL8400710A NL192190C NL 192190 C NL192190 C NL 192190C NL 8400710 A NL8400710 A NL 8400710A NL 8400710 A NL8400710 A NL 8400710A NL 192190 C NL192190 C NL 192190C
Authority
NL
Netherlands
Prior art keywords
ring
image
elementary
values
original image
Prior art date
Application number
NL8400710A
Other languages
English (en)
Dutch (nl)
Other versions
NL8400710A (nl
NL192190B (nl
Original Assignee
Elscint 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
Application filed by Elscint Ltd filed Critical Elscint Ltd
Publication of NL8400710A publication Critical patent/NL8400710A/nl
Publication of NL192190B publication Critical patent/NL192190B/xx
Application granted granted Critical
Publication of NL192190C publication Critical patent/NL192190C/nl

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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
    • G06T11/008—Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
NL8400710A 1983-03-09 1984-03-05 Werkwijzen voor het verbeteren van de beelden van een CT aftastinrichting. NL192190C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47361783A 1983-03-09 1983-03-09
US47361783 1983-03-09

Publications (3)

Publication Number Publication Date
NL8400710A NL8400710A (nl) 1984-10-01
NL192190B NL192190B (nl) 1996-11-01
NL192190C true NL192190C (nl) 1997-03-04

Family

ID=23880300

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8400710A NL192190C (nl) 1983-03-09 1984-03-05 Werkwijzen voor het verbeteren van de beelden van een CT aftastinrichting.

Country Status (5)

Country Link
JP (1) JPH0669453B2 (ja)
DE (1) DE3408148C2 (ja)
FR (1) FR2542541B1 (ja)
IL (1) IL70978A (ja)
NL (1) NL192190C (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02121636A (ja) * 1988-10-31 1990-05-09 Yokogawa Medical Syst Ltd ストリーク等を低減する画像処理方法及び装置
JP2001095793A (ja) * 1999-10-04 2001-04-10 Hitachi Medical Corp Ｘ線ｃｔ装置
JP2006266754A (ja) * 2005-03-22 2006-10-05 Sony Corp Ｘ線断層撮像方法及びｘ線断層撮像装置
JP5125902B2 (ja) * 2008-09-02 2013-01-23 株式会社島津製作所 Ｘ線ｃｔ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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334154A (en) * 1977-12-02 1982-06-08 General Electric Company Tomographic scanning apparatus
DE2754361C2 (de) * 1977-12-07 1983-07-14 N.V. Philips' Gloeilampenfabrieken, 5621 Eindhoven Verfahren zur Verminderung von Bildfehlern in Computer-Tomographiebildern
DE2816462A1 (de) * 1978-04-15 1979-10-25 Philips Patentverwaltung Verfahren zur erzeugung verbesserter rekonstruktionsbilder in computer-tomographiegeraeten
JPS5547843A (en) * 1978-09-30 1980-04-05 Tokyo Shibaura Electric Co Picture treating method in ct and its device
DE2964915D1 (en) * 1978-10-24 1983-03-31 Emi Ltd Computerized tomographic apparatus
DE3107170A1 (de) * 1981-02-26 1982-09-09 Philips Patentverwaltung Gmbh, 2000 Hamburg "vorrichtung zur verminderung von ringartefakten in ct-bildern"
JPS59117662A (ja) * 1982-12-25 1984-07-07 Shimadzu Corp コンピユ−タ断層システム

Also Published As

Publication number Publication date
DE3408148C2 (de) 1994-01-13
JPH0669453B2 (ja) 1994-09-07
FR2542541A1 (fr) 1984-09-14
JPS60137351A (ja) 1985-07-20
IL70978A (en) 1987-03-31
FR2542541B1 (fr) 1992-02-07
NL8400710A (nl) 1984-10-01
DE3408148A1 (de) 1984-09-13
NL192190B (nl) 1996-11-01
IL70978A0 (en) 1984-05-31

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
SNR Assignments of patents or rights arising from examined patent applications

Owner name: PICKER MEDICAL SYSTEMS LTD.

V4 Discontinued because of reaching the maximum lifetime of a patent

Effective date: 20040305