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Scatter correction method and device

A technology of scattering correction and scattering image, which is applied in the field of image processing, can solve the problems of complex implementation process, inaccurate scattering image, poor effect of removing scattered rays, etc., and achieve the effect of eliminating noise and high quality

Active Publication Date: 2015-07-22
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The model established by this method using Montecatello simulation is a water model, and the obtained scattering image is not accurate enough, and the image needs to be deconvoluted, which has the problems of complex implementation process and poor effect of removing scattered rays

Method used

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  • Scatter correction method and device

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Embodiment Construction

[0061] In order to solve the above-mentioned problems existing in the prior art, the technical solution adopted in the embodiment of the present invention establishes a real model of the object to be scanned, so that the estimation of the scattered rays produced by the real model irradiated by the radiation source is more accurate, and the obtained Complicated calculations are performed on the scattering image, so that the scattering image of the object to be scanned can be acquired more accurately, and it is simple and easy to implement.

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0063] figure 1 A flow chart of a scattering correction method in an embodiment of the present invention is shown. Such as figure 1 The scatter correction method shown may include:

[0064] Step S101...

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Abstract

The invention provides a scatter correction method and device. The method comprises the steps that a first projection image of an object to be scanned is obtained; a model for the object to be scanned, a radioactive source and a detector is established; according to the model for the object to be scanned, the radioactive source and the detector, a scatter image of the object to be scanned is obtained; when the scatter image is consistent with the first projection image in geometrical position, the scatter image is eliminated from the first projection image, and a projection image subjected to scatter correction is obtained. By means of the method and device, the scatter image of the object to be scanned can be more accurately and more easily obtained.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a scattering correction method and device. Background technique [0002] Scattering ray is the light that part of the beam will deviate from the original direction and spread when the beam passes through the medium. When the radioactive source is used to irradiate the object to be photographed to obtain an image, scattered rays become an important factor affecting the imaging quality, seriously affecting the contrast of the image, making the image blurred, and seriously affecting the use value of the image. [0003] In the prior art, in order to eliminate the influence of scattered rays on imaging quality, an equivalent water model correction method is usually used to eliminate the influence of scattered rays. The model established by this method using Montecatello simulation is a water model, and the obtained scattering image is not accurate enough, and deconvo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00G06T5/00
Inventor 李贵刘艳芳刘娟倪成
Owner SHANGHAI UNITED IMAGING HEALTHCARE