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Scatter correction method based on area-array light source and system

A technology of scattering correction and light source, which is applied in the fields of radiological diagnostic equipment, medical science, diagnosis, etc., and can solve the problems of image degradation and inability to descatter the grid

Pending Publication Date: 2020-09-22
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the imaging technology based on the area array light source still needs to face the problem of image degradation caused by X-ray scattering.
Since each individual light source in an area array source is at a different angle relative to the detector, it is not possible to use a grid for descattering

Method used

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  • Scatter correction method based on area-array light source and system
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Embodiment Construction

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0014] It should be understood that "system", "device", "unit" and / or "module" as used herein is a method for distinguishing different components, elements, components, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.

[0015] The flow chart is used in this application to illustrate the operations perf...

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Abstract

The invention relates to a scatter correction method based on an area-array light source and a system of the scatter correction method based on the area-array light source. The method comprises the following steps: collecting first projection data of a target scanning object which is stopped by a beam stop array on the basis of a first emergence parameter; determining scatter data of the target scanning object on the basis of the first projection data; collecting second projection data of the target scanning object which is not stopped by the beam stop array on the basis of a second emergenceparameter; and determining target projection data of the target scanning object on the basis of the scatter data and the second projection data.

Description

technical field [0001] The present application relates to the field of scatter correction, in particular to a method and device for scatter correction based on an area array light source. Background technique [0002] Traditional digital breast tomography (DBT) performs X-ray photography on the breast under a series of different angles by moving a single point light source, and obtains projection data under different projection angles. Due to the motion artifact caused by mechanical movement and the time delay caused by the thermal electron emission mechanism, the spatial resolution of the scanned image is reduced and the scanning time is prolonged. Motion artifacts are easily generated during the shooting process, which affects image quality and doctors. diagnostic accuracy. Motion artifacts in images can be greatly reduced by imaging techniques using field emission area light sources. However, the imaging technology based on the area array light source still needs to fac...

Claims

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Application Information

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IPC IPC(8): A61B6/00
CPCA61B6/582
Inventor 袁洲姚鹏冯娟
Owner SHANGHAI UNITED IMAGING HEALTHCARE