WO2009091202A3 - Method for correcting truncation artifacts - Google Patents

Method for correcting truncation artifacts Download PDF

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Publication number
WO2009091202A3
WO2009091202A3 PCT/KR2009/000231 KR2009000231W WO2009091202A3 WO 2009091202 A3 WO2009091202 A3 WO 2009091202A3 KR 2009000231 W KR2009000231 W KR 2009000231W WO 2009091202 A3 WO2009091202 A3 WO 2009091202A3
Authority
WO
WIPO (PCT)
Prior art keywords
truncation artifacts
correcting
patient
head
correcting truncation
Prior art date
Application number
PCT/KR2009/000231
Other languages
French (fr)
Korean (ko)
Other versions
WO2009091202A9 (en
WO2009091202A2 (en
Inventor
노창준
김태우
Original Assignee
(주)이우테크놀로지
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 (주)이우테크놀로지 filed Critical (주)이우테크놀로지
Publication of WO2009091202A2 publication Critical patent/WO2009091202A2/en
Publication of WO2009091202A3 publication Critical patent/WO2009091202A3/en
Publication of WO2009091202A9 publication Critical patent/WO2009091202A9/en

Links

Classifications

    • 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
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

The present invention relates to a method for correcting truncation artifacts in a dental X-ray CT apparatus, that provides a correction for truncation artifacts, which are caused by imaging deviation of a part of the head of a patient from the region of interest in the case of imaging an object, i.e. the head of a patient, with an LSF technique which enhances the edges of the reconfigured images.
PCT/KR2009/000231 2008-01-15 2009-01-15 Method for correcting truncation artifacts WO2009091202A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080004377A KR100923094B1 (en) 2008-01-15 2008-01-15 Method for revise truncation artifact
KR10-2008-0004377 2008-01-15

Publications (3)

Publication Number Publication Date
WO2009091202A2 WO2009091202A2 (en) 2009-07-23
WO2009091202A3 true WO2009091202A3 (en) 2009-10-01
WO2009091202A9 WO2009091202A9 (en) 2010-01-28

Family

ID=40885806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/000231 WO2009091202A2 (en) 2008-01-15 2009-01-15 Method for correcting truncation artifacts

Country Status (2)

Country Link
KR (1) KR100923094B1 (en)
WO (1) WO2009091202A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160057935A (en) 2014-11-14 2016-05-24 삼성전자주식회사 Tomography apparatus and method for reconstructing a tomography image thereof
KR102379067B1 (en) 2014-12-01 2022-03-25 삼성전자주식회사 Medical image apparatus and method for processing medical image
CN111260771B (en) * 2020-01-13 2023-08-29 北京东软医疗设备有限公司 Image reconstruction method and device
KR102387403B1 (en) * 2020-05-28 2022-04-14 건양대학교 산학협력단 Projection data correction method for truncation artifact reduction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550371A (en) * 1982-09-27 1985-10-29 General Electric Company Method and apparatus for compensating CT images for truncated projections
JP2003116824A (en) * 2001-08-09 2003-04-22 Shimadzu Corp Method for correcting radiation image and radiation photographing apparatus
JP2003199740A (en) * 2001-10-25 2003-07-15 Toshiba Corp X-ray ct device, three-dimensional reconstruction method for x-ray ct and weight setting method for x-ray ct
JP3446327B2 (en) * 1994-08-31 2003-09-16 株式会社島津製作所 Radiation imaging device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550371A (en) * 1982-09-27 1985-10-29 General Electric Company Method and apparatus for compensating CT images for truncated projections
JP3446327B2 (en) * 1994-08-31 2003-09-16 株式会社島津製作所 Radiation imaging device
JP2003116824A (en) * 2001-08-09 2003-04-22 Shimadzu Corp Method for correcting radiation image and radiation photographing apparatus
JP2003199740A (en) * 2001-10-25 2003-07-15 Toshiba Corp X-ray ct device, three-dimensional reconstruction method for x-ray ct and weight setting method for x-ray ct

Also Published As

Publication number Publication date
WO2009091202A9 (en) 2010-01-28
KR100923094B1 (en) 2009-10-22
KR20090078513A (en) 2009-07-20
WO2009091202A2 (en) 2009-07-23

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