ATE448529T1 - Rauschminderung bei doppelenergie- röntgenbildgebung - Google Patents

Rauschminderung bei doppelenergie- röntgenbildgebung

Info

Publication number
ATE448529T1
ATE448529T1 AT07735116T AT07735116T ATE448529T1 AT E448529 T1 ATE448529 T1 AT E448529T1 AT 07735116 T AT07735116 T AT 07735116T AT 07735116 T AT07735116 T AT 07735116T AT E448529 T1 ATE448529 T1 AT E448529T1
Authority
AT
Austria
Prior art keywords
ray
attenuation
spectral
signal
base line
Prior art date
Application number
AT07735116T
Other languages
English (en)
Inventor
Ewald Roessl
Andy Ziegler
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE448529T1 publication Critical patent/ATE448529T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • 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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
AT07735116T 2006-03-29 2007-03-14 Rauschminderung bei doppelenergie- röntgenbildgebung ATE448529T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06111881 2006-03-29
PCT/IB2007/050877 WO2007110794A1 (en) 2006-03-29 2007-03-14 Noise reduction in dual-energy x-ray imaging

Publications (1)

Publication Number Publication Date
ATE448529T1 true ATE448529T1 (de) 2009-11-15

Family

ID=38328932

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07735116T ATE448529T1 (de) 2006-03-29 2007-03-14 Rauschminderung bei doppelenergie- röntgenbildgebung

Country Status (6)

Country Link
US (1) US7822169B2 (de)
EP (1) EP2002397B1 (de)
CN (1) CN101410871A (de)
AT (1) ATE448529T1 (de)
DE (1) DE602007003203D1 (de)
WO (1) WO2007110794A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE534046T1 (de) * 2006-03-29 2011-12-15 Koninkl Philips Electronics Nv Dynamische optimierung des signal- rausch- verhältnisses von doppelenergie-dämpfungsdaten für die rekonstruierung von bildern
US7924968B2 (en) * 2007-04-23 2011-04-12 Koninklijke Philips Electronics N.V. Imaging system for imaging a region of interest from energy-dependent projection data
WO2009040880A1 (ja) * 2007-09-25 2009-04-02 Shimadzu Corporation 放射線撮像装置
DE102008032996B4 (de) * 2008-07-14 2014-08-21 Siemens Aktiengesellschaft Verfahren zur Bestimmung einer Schwächungskarte
EP2572331A1 (de) 2010-05-21 2013-03-27 Koninklijke Philips Electronics N.V. Kantenerhaltende rauschfilterung
US9547889B2 (en) * 2011-07-15 2017-01-17 Koninklijke Philips N.V. Image processing for spectral CT
US8929508B1 (en) 2012-04-17 2015-01-06 Robert E. Alvarez Energy selective X-ray system with low noise
US9076237B2 (en) * 2013-03-12 2015-07-07 Wisconsin Alumni Research Foundation System and method for estimating a statistical noise map in x-ray imaging applications
US10117628B2 (en) * 2014-10-01 2018-11-06 Toshiba Medical Systems Corporation Photon counting apparatus
US9460485B2 (en) * 2014-12-11 2016-10-04 General Electric Company Systems and methods for guided de-noising for computed tomography
US9545236B2 (en) * 2015-01-23 2017-01-17 Toshiba Medical Systems Corporation Method for scanogram scans in photon-counting computed tomography
CN108061913B (zh) * 2018-01-31 2023-10-27 中国工程物理研究院激光聚变研究中心 安装装置及能谱仪
CN110836901B (zh) * 2018-08-17 2020-09-04 同方威视技术股份有限公司 基于k边缘成像的优化阈值方法、装置、设备和介质
CN109801243B (zh) * 2019-01-28 2020-11-27 中国科学院高能物理研究所 材料成像权重的确定方法、装置、介质及电子设备
JP2024514393A (ja) * 2021-03-01 2024-04-02 ザ・リサーチ・ファウンデーション・フォー・ザ・ステイト・ユニヴァーシティ・オブ・ニューヨーク スペクトル撮像および造影剤増強デジタル胸部トモシンセシスのための二重層検出器システムおよび方法

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US4029963A (en) * 1976-07-30 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University X-ray spectral decomposition imaging system
US4463375A (en) * 1982-09-07 1984-07-31 The Board Of Trustees Of The Leland Standford Junior University Multiple-measurement noise-reducing system
US5115394A (en) 1983-11-25 1992-05-19 Technicare Corporation Dual energy computerized tomography system
US5221843A (en) 1992-04-23 1993-06-22 Alvarez Robert E Active energy selective x-ray image detection
US5436829A (en) * 1992-11-05 1995-07-25 General Electric Company Method of achieving reduced dose X-ray fluoroscopy by employing transform-based estimation of Poisson noise
JP3455577B2 (ja) * 1994-04-08 2003-10-14 株式会社東芝 Ｘ線ｃｔ装置
US5965897A (en) 1998-02-05 1999-10-12 X-Medica Ltd. High resolution storage phosphor x-ray imaging device
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US7706497B2 (en) * 2008-03-14 2010-04-27 General Electric Company Methods and apparatus for noise estimation for multi-resolution anisotropic diffusion filtering

Also Published As

Publication number Publication date
US7822169B2 (en) 2010-10-26
DE602007003203D1 (de) 2009-12-24
EP2002397B1 (de) 2009-11-11
US20090135998A1 (en) 2009-05-28
EP2002397A1 (de) 2008-12-17
WO2007110794A1 (en) 2007-10-04
CN101410871A (zh) 2009-04-15

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