IL138112A - Methods and apparatus for pre-filtering weighting in image reconstruction - Google Patents

Methods and apparatus for pre-filtering weighting in image reconstruction

Info

Publication number
IL138112A
IL138112A IL13811200A IL13811200A IL138112A IL 138112 A IL138112 A IL 138112A IL 13811200 A IL13811200 A IL 13811200A IL 13811200 A IL13811200 A IL 13811200A IL 138112 A IL138112 A IL 138112A
Authority
IL
Israel
Prior art keywords
panel
weighting function
accordance
data
edge
Prior art date
Application number
IL13811200A
Other languages
English (en)
Other versions
IL138112A0 (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 IL138112A0 publication Critical patent/IL138112A0/xx
Publication of IL138112A publication Critical patent/IL138112A/en

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/432—Truncation
    • 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)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
IL13811200A 1999-09-07 2000-08-27 Methods and apparatus for pre-filtering weighting in image reconstruction IL138112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/390,449 US6269139B1 (en) 1999-09-07 1999-09-07 Methods and apparatus for pre-filtering weighting in image reconstruction

Publications (2)

Publication Number Publication Date
IL138112A0 IL138112A0 (en) 2001-10-31
IL138112A true IL138112A (en) 2004-03-28

Family

ID=23542499

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13811200A IL138112A (en) 1999-09-07 2000-08-27 Methods and apparatus for pre-filtering weighting in image reconstruction

Country Status (5)

Country Link
US (1) US6269139B1 (fr)
EP (1) EP1085469A3 (fr)
JP (1) JP2001128964A (fr)
CN (1) CN1287327A (fr)
IL (1) IL138112A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6980681B1 (en) 2000-04-24 2005-12-27 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for helical reconstruction for multislice CT scan
US6463118B2 (en) 2000-12-29 2002-10-08 Ge Medical Systems Global Technology Company, Llc Computed tomography (CT) weighting for high quality image recontruction
US7072436B2 (en) * 2001-08-24 2006-07-04 The Board Of Trustees Of The Leland Stanford Junior University Volumetric computed tomography (VCT)
US6678346B2 (en) 2001-10-11 2004-01-13 Ge Medical Systems Global Technology Company Llc Cone-beam CT scanner with image reconstruction using multiple sub-images
US6404842B1 (en) 2001-10-15 2002-06-11 Ge Medical Systems Global Technology Company, Llc Method and apparatus for image reconstruction in twin helical computed tomographic systems
US6587537B1 (en) 2002-04-01 2003-07-01 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for multi-slice image reconstruction
US7415145B2 (en) * 2003-12-30 2008-08-19 General Electric Company Methods and apparatus for artifact reduction
US7050527B2 (en) * 2004-02-09 2006-05-23 G.E. Medical Systems Global Technology Company, Llc Methods and apparatus for artifact reduction in cone beam CT image reconstruction
US20050201605A1 (en) * 2004-03-11 2005-09-15 Jianying Li Methods and apparatus for CT smoothing to reduce artifacts
US7173996B2 (en) * 2004-07-16 2007-02-06 General Electric Company Methods and apparatus for 3D reconstruction in helical cone beam volumetric CT
US7729890B2 (en) * 2006-08-22 2010-06-01 Analog Devices, Inc. Method for determining the change of a signal, and an apparatus including a circuit arranged to implement the method
US8284892B2 (en) * 2008-12-22 2012-10-09 General Electric Company System and method for image reconstruction
EP3254623B1 (fr) * 2016-06-09 2020-09-16 Agfa Nv Procédé et système de correction de désalignement géométrique pendant la reconstruction d'image de tomosynthèse thoracique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703424A (en) * 1985-01-03 1987-10-27 General Electric Company Method and means of correcting for a shift in the center of rotation of a rotating fan beam CT system
AU8300191A (en) * 1990-07-02 1992-01-23 Varian Associates, Inc. Partial fan beam tomographic apparatus and data reconstruction method

Also Published As

Publication number Publication date
EP1085469A3 (fr) 2004-03-31
US6269139B1 (en) 2001-07-31
JP2001128964A (ja) 2001-05-15
IL138112A0 (en) 2001-10-31
CN1287327A (zh) 2001-03-14
EP1085469A2 (fr) 2001-03-21

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Legal Events

Date Code Title Description
MM9K Patent not in force due to non-payment of renewal fees