IL122741A - Methods and apparatus for simplified filtering of scan data in an imaging system - Google Patents

Methods and apparatus for simplified filtering of scan data in an imaging system

Info

Publication number
IL122741A
IL122741A IL12274197A IL12274197A IL122741A IL 122741 A IL122741 A IL 122741A IL 12274197 A IL12274197 A IL 12274197A IL 12274197 A IL12274197 A IL 12274197A IL 122741 A IL122741 A IL 122741A
Authority
IL
Israel
Prior art keywords
methods
imaging system
scan data
simplified filtering
simplified
Prior art date
Application number
IL12274197A
Other languages
English (en)
Other versions
IL122741A0 (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 IL122741A0 publication Critical patent/IL122741A0/xx
Publication of IL122741A publication Critical patent/IL122741A/xx

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
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • 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)
  • Processing Or Creating Images (AREA)
  • Image Analysis (AREA)
IL12274197A 1996-12-26 1997-12-24 Methods and apparatus for simplified filtering of scan data in an imaging system IL122741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/773,082 US5761267A (en) 1996-12-26 1996-12-26 Methods and apparatus for simplified filtering of scan data in an imaging system

Publications (2)

Publication Number Publication Date
IL122741A0 IL122741A0 (en) 1998-08-16
IL122741A true IL122741A (en) 2000-10-31

Family

ID=25097165

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12274197A IL122741A (en) 1996-12-26 1997-12-24 Methods and apparatus for simplified filtering of scan data in an imaging system

Country Status (6)

Country Link
US (1) US5761267A (xx)
EP (1) EP0851393B1 (xx)
JP (1) JPH10295686A (xx)
CN (1) CN1117339C (xx)
DE (1) DE69732615T2 (xx)
IL (1) IL122741A (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6418185B1 (en) 1999-08-18 2002-07-09 General Electric Company Methods and apparatus for time-multiplexing data acquisition
US6703469B2 (en) 2001-03-05 2004-03-09 Specialty Fertilizer Products, Llc Anionic polymers composed of dicarboxylic acids and uses thereof
US8442353B2 (en) * 2006-08-03 2013-05-14 The Regents Of The University Of California Incorporation of mathematical constraints in methods for dose reduction and image enhancement in tomography
WO2008017076A2 (en) * 2006-08-03 2008-02-07 The Regents Of The University Of California Iterative methods for dose reduction and image enhancement in tomography
JP2011510757A (ja) * 2008-01-30 2011-04-07 ザ リージェンツ オブ ザ ユニヴァーシティー オブ カリフォルニア 対象の周囲を動的な束縛として使用することによる、トモグラフィにおける放射線量低減および画質向上
DE102009004580A1 (de) * 2009-01-14 2010-07-15 Siemens Aktiengesellschaft Abtast- und Rekonstruktionsverfahren eines CT-Systems und CT-System
US8611626B2 (en) * 2009-04-30 2013-12-17 The Regents Of The University Of California System and methods for fast implementation of equally-sloped tomography
CN104751429B (zh) * 2015-01-27 2018-02-02 南方医科大学 一种基于字典学习的低剂量能谱ct图像处理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63232578A (ja) * 1987-03-19 1988-09-28 Sony Corp ノイズ低減回路
FR2638534A1 (fr) * 1988-10-28 1990-05-04 Gen Electric Cgr Procede et systeme d'elimination des bruits parasites dans un scanner a rayons x
US5270926A (en) * 1990-12-21 1993-12-14 General Electric Company Method and apparatus for reconstructing a three-dimensional computerized tomography (CT) image of an object from incomplete cone beam projection data
CA2056528A1 (en) * 1990-12-21 1992-06-22 Kwok C. Tam Parallel processing method and apparatus for reconstructing a three-dimensional computerized tomography (ct) image of an object from cone beam projection data or from planar integrals
DE4105517C2 (de) * 1991-02-22 1995-11-16 Hell Ag Linotype Verfahren und Vorrichtung zur verbesserten Wiedergabe von Konturen
US5359638A (en) * 1992-03-30 1994-10-25 General Electric Company Method for recursive filtering residual afterglow from previous computed tomography scans
US5400377A (en) * 1993-07-16 1995-03-21 General Electric Company Artifact reduction method for tomographic image reconstruction using cross-plane rays
KR970010087B1 (en) * 1994-04-30 1997-06-21 Daewoo Electronics Co Ltd Postprocessing method for digital image
US5473655A (en) * 1994-07-21 1995-12-05 General Electric Company Artifact reduction by z-dependent filtration of three-dimensional cone beam data
US5561695A (en) * 1995-11-13 1996-10-01 General Electric Company Methods and apparatus for reducing image artifacts

Also Published As

Publication number Publication date
IL122741A0 (en) 1998-08-16
EP0851393A2 (en) 1998-07-01
DE69732615T2 (de) 2005-11-03
CN1117339C (zh) 2003-08-06
EP0851393A3 (en) 2000-08-30
US5761267A (en) 1998-06-02
CN1189653A (zh) 1998-08-05
DE69732615D1 (de) 2005-04-07
EP0851393B1 (en) 2005-03-02
JPH10295686A (ja) 1998-11-10

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Legal Events

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