BR112016014808A2 - sistemas e métodos de tomografia computadorizada - Google Patents

sistemas e métodos de tomografia computadorizada

Info

Publication number
BR112016014808A2
BR112016014808A2 BR112016014808-8A BR112016014808A BR112016014808A2 BR 112016014808 A2 BR112016014808 A2 BR 112016014808A2 BR 112016014808 A BR112016014808 A BR 112016014808A BR 112016014808 A2 BR112016014808 A2 BR 112016014808A2
Authority
BR
Brazil
Prior art keywords
digital signal
image
scan
processing device
stage
Prior art date
Application number
BR112016014808-8A
Other languages
English (en)
Chinese (zh)
Other versions
BR112016014808B1 (pt
Inventor
Zhang Li
Chen Zhiqiang
Huang Qingping
Jin Xin
Sun Yunda
Shen Le
Zhao Ji
Original Assignee
Nuctech Company Limited
Tsinghua University
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 Nuctech Company Limited, Tsinghua University filed Critical Nuctech Company Limited
Publication of BR112016014808A2 publication Critical patent/BR112016014808A2/pt
Publication of BR112016014808B1 publication Critical patent/BR112016014808B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
    • G01V5/226—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography
    • 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
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/08—Means for conveying samples received
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Pulmonology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

"sistemas e métodos de tomografia computadorizada tc?, onde o sistema inclui: um mecanismo de transporte (110); um primeiro estágio de varredura configurado para realizar uma varredura do objeto (120) e gerar um primeiro sinal digital; um segundo estágio de varredura, espaçado a partir do primeiro estágio de varredura a uma distância predefinida em uma direção do movimento do objeto (120); um dispositivo de processamento (130) configurado para reconstruir uma imagem de tc do objeto (120) em uma primeira qualidade de imagem com base no primeiro sinal digital, e analisar a imagem de tc; e um dispositivo de controle (140) configurado para ajustar um parâmetro de varredura do segundo estágio de varredura com base em um resultado de análise do dispositivo de processamento (130) para fazer com que o segundo estágio de varredura emita um segundo sinal digital, sendo que o dispositivo de processamento (130) reconstrói uma imagem de tc do objeto (120) em uma segunda qualidade de imagem, superior à primeira qualidade de imagem, com base, pelo menos, no segundo sinal digital, onde o sistema tira o máximo proveito das fontes de raios distribuídas que substituem a tecnologia de anel deslizante normal.
BR112016014808-8A 2013-12-26 2014-12-25 sistemas e métodos de tomografia computadorizada BR112016014808B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201310739803.4 2013-12-26
CN201310739803.4A CN104374783B (zh) 2013-12-26 2013-12-26 Ct系统及其方法
PCT/CN2014/094994 WO2015096784A1 (zh) 2013-12-26 2014-12-25 Ct系统及其方法

Publications (2)

Publication Number Publication Date
BR112016014808A2 true BR112016014808A2 (pt) 2018-07-17
BR112016014808B1 BR112016014808B1 (pt) 2020-11-10

Family

ID=52465144

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112016014808-8A BR112016014808B1 (pt) 2013-12-26 2014-12-25 sistemas e métodos de tomografia computadorizada

Country Status (13)

Country Link
US (1) US9746579B2 (pt)
EP (1) EP2889649B1 (pt)
JP (1) JP6305544B2 (pt)
CN (1) CN104374783B (pt)
AU (1) AU2014373004B2 (pt)
BR (1) BR112016014808B1 (pt)
CA (1) CA2935086C (pt)
ES (1) ES2749729T3 (pt)
HK (1) HK1202620A1 (pt)
IL (1) IL246344B (pt)
MY (1) MY187042A (pt)
SG (1) SG11201605156WA (pt)
WO (1) WO2015096784A1 (pt)

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CN104749648A (zh) 2013-12-27 2015-07-01 清华大学 多能谱静态ct设备
WO2017011057A2 (en) * 2015-04-27 2017-01-19 GREEN, Christopher, K. Four plane x-ray inspection system
CN106526686B (zh) * 2016-12-07 2019-05-07 同方威视技术股份有限公司 螺旋ct设备和三维图像重建方法
CN107450091B (zh) * 2017-07-25 2020-01-03 苏州德锐特成像技术有限公司 一种基于面阵相机芯片的电离辐射计量方法和装置
AU2019373486A1 (en) * 2018-10-31 2021-06-17 Nanovision Technology (Beijing) Co., Ltd. Multi-energy static security ct system and imaging method
CN109343135B (zh) * 2018-10-31 2020-10-09 北京纳米维景科技有限公司 一种多级能量型静态安检ct系统及成像方法
JP7266479B2 (ja) * 2019-07-04 2023-04-28 日本信号株式会社 検査装置
CN110706790B (zh) * 2019-09-29 2023-10-31 东软医疗系统股份有限公司 数据传输方法、装置及设备
CN113238298B (zh) * 2021-07-09 2022-03-04 同方威视技术股份有限公司 检查系统及方法

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Also Published As

Publication number Publication date
CN104374783A (zh) 2015-02-25
WO2015096784A1 (zh) 2015-07-02
JP2017501414A (ja) 2017-01-12
IL246344A0 (en) 2016-08-31
MY187042A (en) 2021-08-27
US20150185355A1 (en) 2015-07-02
BR112016014808B1 (pt) 2020-11-10
IL246344B (en) 2021-05-31
ES2749729T3 (es) 2020-03-23
CA2935086A1 (en) 2015-07-02
EP2889649A1 (en) 2015-07-01
AU2014373004A1 (en) 2016-07-14
CN104374783B (zh) 2017-06-16
HK1202620A1 (en) 2015-10-02
US9746579B2 (en) 2017-08-29
JP6305544B2 (ja) 2018-04-04
SG11201605156WA (en) 2016-07-28
EP2889649B1 (en) 2019-09-18
AU2014373004B2 (en) 2017-06-22
CA2935086C (en) 2020-03-31

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Legal Events

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/12/2014, OBSERVADAS AS CONDICOES LEGAIS.