CN110389138B - 使用Alvarez-Macovski衰减模型在断层摄影重建中进行X射线束硬化校正 - Google Patents

使用Alvarez-Macovski衰减模型在断层摄影重建中进行X射线束硬化校正 Download PDF

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CN110389138B
CN110389138B CN201910315600.XA CN201910315600A CN110389138B CN 110389138 B CN110389138 B CN 110389138B CN 201910315600 A CN201910315600 A CN 201910315600A CN 110389138 B CN110389138 B CN 110389138B
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CN110389138A (zh
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Q.杨
G.R.梅尔斯
S.J.莱瑟姆
A.P.谢泼德
A.金斯敦
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating 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
    • G01N23/02Investigating 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
    • G01N23/04Investigating 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
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    • G06T12/00Tomographic reconstruction from projections
    • G06T12/10Image preprocessing, e.g. calibration, positioning of sources or scatter correction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/06Diaphragms
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00Tomographic reconstruction from projections
    • G06T12/20Inverse problem, i.e. transformations from projection space into object space
    • GPHYSICS
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    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • G01N2223/30Accessories, mechanical or electrical features
    • G01N2223/303Accessories, mechanical or electrical features calibrating, standardising
    • G01N2223/3035Accessories, mechanical or electrical features calibrating, standardising phantom
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    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/40Imaging
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    • G01N2223/40Imaging
    • G01N2223/419Imaging computed tomograph
    • GPHYSICS
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    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
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    • G01N2223/423Imaging multispectral imaging-multiple energy imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/60Specific applications or type of materials
    • G01N2223/616Specific applications or type of materials earth materials
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00Image generation
    • G06T2211/40Computed tomography
    • G06T2211/408Dual energy
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00Image generation
    • G06T2211/40Computed tomography
    • G06T2211/424Iterative

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CN201910315600.XA 2018-04-19 2019-04-18 使用Alvarez-Macovski衰减模型在断层摄影重建中进行X射线束硬化校正 Active CN110389138B (zh)

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US (1) US10902650B2 (https=)
JP (1) JP7181832B2 (https=)
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CN111373448B (zh) 2017-09-22 2023-12-08 尼维医疗公司 使用机器学习正则化器的图像重建
US11610297B2 (en) * 2019-12-02 2023-03-21 Kla Corporation Tomography based semiconductor measurements using simplified models
FR3126779B1 (fr) * 2021-09-09 2024-05-31 Safran Procédé, dispositif et programme d’ordinateur de contrôle d’une pièce par radiographie aux rayons X
CN115078214B (zh) * 2022-06-14 2024-01-26 西南石油大学 基于双能ct的岩心矿物识别及孔隙度分布联合表征方法
US12408888B2 (en) 2023-06-12 2025-09-09 Canon Medical Systems Corporation Detector response calibaration data weight optimization method for a photon counting x-ray imaging system
CN117330592B (zh) * 2023-11-30 2024-03-15 赛诺威盛科技(北京)股份有限公司 能谱及散射校正方法、装置和设备
CN118505831B (zh) * 2024-04-23 2025-10-21 中北大学 基于积分不变性的单电压下ct图像硬化伪影校正方法

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JP2019188135A (ja) 2019-10-31
US20190325618A1 (en) 2019-10-24
RU2019111292A3 (https=) 2021-11-01
US10902650B2 (en) 2021-01-26
CN110389138A (zh) 2019-10-29
RU2770544C2 (ru) 2022-04-18
AU2019202047B2 (en) 2023-10-05
RU2019111292A (ru) 2020-10-16
JP7181832B2 (ja) 2022-12-01
AU2019202047A1 (en) 2019-11-07

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