HK1204124A1 - X-ray dual-energy ct reconstruction method x ct - Google Patents

X-ray dual-energy ct reconstruction method x ct

Info

Publication number
HK1204124A1
HK1204124A1 HK15104447.4A HK15104447A HK1204124A1 HK 1204124 A1 HK1204124 A1 HK 1204124A1 HK 15104447 A HK15104447 A HK 15104447A HK 1204124 A1 HK1204124 A1 HK 1204124A1
Authority
HK
Hong Kong
Prior art keywords
energy
reconstruction method
ray dual
dual
ray
Prior art date
Application number
HK15104447.4A
Other languages
English (en)
Chinese (zh)
Inventor
刑宇翔沈樂張麗陳志强李亮
Original Assignee
Univ Tsinghua
Nuctech Co 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 Univ Tsinghua, Nuctech Co Ltd filed Critical Univ Tsinghua
Publication of HK1204124A1 publication Critical patent/HK1204124A1/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • 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
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10081—Computed x-ray tomography [CT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20182—Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/408—Dual energy
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/424—Iterative

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
HK15104447.4A 2013-07-26 2015-05-12 X-ray dual-energy ct reconstruction method x ct HK1204124A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310318608.4A CN104346820B (zh) 2013-07-26 2013-07-26 一种x光双能ct重建方法

Publications (1)

Publication Number Publication Date
HK1204124A1 true HK1204124A1 (en) 2015-11-06

Family

ID=51205275

Family Applications (1)

Application Number Title Priority Date Filing Date
HK15104447.4A HK1204124A1 (en) 2013-07-26 2015-05-12 X-ray dual-energy ct reconstruction method x ct

Country Status (6)

Country Link
US (1) US9513235B2 (fr)
EP (1) EP2843623B1 (fr)
CN (1) CN104346820B (fr)
HK (1) HK1204124A1 (fr)
PL (1) PL2843623T3 (fr)
WO (1) WO2015010632A1 (fr)

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CN104899903B (zh) * 2015-05-12 2018-11-30 公安部第一研究所 基于cuda架构的gpu并行加速双能谱ct重建方法
CN105512487A (zh) * 2015-12-15 2016-04-20 浙江大学 图像域双能ct多材料统计分解方法
CN106023124A (zh) * 2016-05-09 2016-10-12 上海交通大学 一种基于先验图像约束的磁共振稀疏重建图像方法
CN107356615B (zh) * 2016-05-10 2020-01-21 清华大学 一种用于双能x射线ct的方法和系统
CN105807329B (zh) * 2016-05-30 2019-05-17 公安部第一研究所 一种用于识别包裹中危险液体的x射线检测装置与方法
US11172893B2 (en) * 2016-07-01 2021-11-16 Georgia Tech Research Corporation Dual-energy CT through primary beam modulation
CN106251383B (zh) * 2016-08-31 2018-11-27 东北大学 一种能谱ct基物质正弦图的估计方法
JPWO2018062308A1 (ja) * 2016-09-28 2019-07-11 国立大学法人群馬大学 Ｘ線ｃｔ装置、電子密度及び実効原子番号の測定方法、ｃｔ検査方法、検査方法
CN106910157B (zh) * 2017-02-17 2020-06-26 公安部第一研究所 一种多级并行的图像重建方法及装置
CN108010098B (zh) * 2017-12-04 2020-12-25 首都师范大学 一种双能谱ct基材料图像迭代重建方法
DE102018201967A1 (de) * 2018-02-08 2019-08-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Auswerten einer Multi-Energie-Röntgen-Aufnahme mittels einer Basismaterialzerlegung
CN108896588B (zh) * 2018-06-08 2020-11-20 中北大学 一种多孔介质微观结构的测量方法
CN110176045A (zh) * 2019-05-05 2019-08-27 东南大学 一种由单能ct图像生成双能ct图像的方法
CN110428395B (zh) * 2019-06-20 2021-10-08 浙江大学 单能谱ct图像的多材料分解方法
CN110731788B (zh) * 2019-07-18 2023-10-20 天津大学 一种基于双能ct扫描仪对基物质进行快速分解的方法
CN112304987B (zh) * 2020-10-19 2024-04-12 西北工业大学 基于光子计数能谱ct的含能材料等效原子序数测量方法
CN112652054B (zh) * 2020-12-22 2022-12-20 上海索骥信息科技有限公司 一种dr/ct数字物体构建方法和系统
CN112581556B (zh) * 2020-12-25 2023-01-03 上海联影医疗科技股份有限公司 多能ct图像硬化校正方法、装置、计算机设备和存储介质
CN112924478B (zh) * 2021-01-29 2022-12-06 上海科技大学 基于双能量数字x射线成像的架空线缆检测系统
CN113298905B (zh) * 2021-05-28 2022-12-16 同济大学 基于基础材料分解的多能谱ct重建方法及计算机可读介质
CN114903510B (zh) * 2022-05-26 2023-04-18 北京朗视仪器股份有限公司 一种双能ct成像方法、装置及计算机设备

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US7391882B2 (en) * 2004-01-29 2008-06-24 Siemens Medical Solutions Usa, Inc. Prior knowledge, level set representations and visual grouping
US8184877B2 (en) * 2007-02-12 2012-05-22 Carestream Health, Inc. Renormalization of dual-energy images
CN101403710B (zh) * 2007-10-05 2013-06-19 清华大学 液态物品检查方法和设备
JP5106978B2 (ja) * 2007-10-15 2012-12-26 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｘ線ｃｔ装置
US8194961B2 (en) * 2008-04-21 2012-06-05 Kabushiki Kaisha Toshiba Method, apparatus, and computer-readable medium for pre-reconstruction decomposition and calibration in dual energy computed tomography
CN101647706B (zh) * 2008-08-13 2012-05-30 清华大学 高能双能ct系统的图象重建方法
US8705822B2 (en) * 2008-09-03 2014-04-22 Mayo Foundation For Medical Education And Research Method for creating images indicating material decomposition in dual energy, dual source helical computed tomography
US9036879B2 (en) * 2008-11-28 2015-05-19 General Electric Company Multi-material decomposition using dual energy computed tomography
US8165264B2 (en) * 2009-01-28 2012-04-24 Kabushiki Kaisha Toshiba Method of pre-reconstruction decomposition for fast kV-switching acquisition in dual energy computed tomography (CT)
CN102435621B (zh) * 2009-05-27 2013-09-11 清华大学 双能欠采样物质识别方法和系统
CN103913472B (zh) * 2012-12-31 2016-04-20 同方威视技术股份有限公司 Ct成像系统和方法

Also Published As

Publication number Publication date
PL2843623T3 (pl) 2019-09-30
EP2843623A2 (fr) 2015-03-04
WO2015010632A1 (fr) 2015-01-29
US20150030225A1 (en) 2015-01-29
CN104346820B (zh) 2017-05-17
CN104346820A (zh) 2015-02-11
US9513235B2 (en) 2016-12-06
EP2843623B1 (fr) 2019-02-13
EP2843623A3 (fr) 2015-04-22

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