CN110730977A - 低剂量成像方法及装置 - Google Patents

低剂量成像方法及装置 Download PDF

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CN110730977A
CN110730977A CN201880002818.3A CN201880002818A CN110730977A CN 110730977 A CN110730977 A CN 110730977A CN 201880002818 A CN201880002818 A CN 201880002818A CN 110730977 A CN110730977 A CN 110730977A
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image
projection data
iterative reconstruction
ith
generate
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CN110730977B (zh
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闫浩
李久良
吴应文
李金升
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SHENZHEN AOWO MEDICAL NEW TECHNOLOGY DEVELOPMENT CO LTD
Our United Corp
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SHENZHEN AOWO MEDICAL NEW TECHNOLOGY DEVELOPMENT CO LTD
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    • 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
    • G06T11/008—Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • 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
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/424—Iterative
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/444—Low dose acquisition or reduction of radiation dose

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

本发明公开了一种低剂量成像方法及装置，属于图像处理领域。该方法包括：持续采集投影数据；在采集到的投影数据的数据量达到预设数据量之前，对采集到的投影数据进行第一处理，生成第一图像并显示所述第一图像；当采集到的投影数据的数据量达到预设数据量时，基于所述预设数量的投影数据进行第二处理，生成第二图像并显示所述第二图像。本发明解决了相关技术中显示目标图像需要等待所有帧的投影数据被采集完后进行，显示目标图像所用的时间较长的问题，达到了无需等待所有帧的投影数据被采集完后显示图像，缩短了显示图像所用的时间的效果，用于低剂量成像。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201880002818.3A 2018-05-04 2018-05-04 低剂量成像方法及装置 Active CN110730977B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115778412A (zh) * 2023-02-09 2023-03-14 之江实验室 X光声成像中造影剂剂量的优化方法、装置及存储介质

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WO1999048297A1 (de) * 1998-03-19 1999-09-23 Coin Institut Für Computer-Integriertes Engineering Gmbh Verfahren zur erhöhung der auflösung eines bildes
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115778412A (zh) * 2023-02-09 2023-03-14 之江实验室 X光声成像中造影剂剂量的优化方法、装置及存储介质

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