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Method and device for correcting scattering of digital X-ray image

A line image and image technology, applied in the field of digital X-ray image scattering correction, can solve the problem of low accuracy of image scattering correction, and achieve the effect of ensuring quality and accuracy, and accurate key parameters

Active Publication Date: 2015-05-13
NEUSOFT MEDICAL SYST CO LTD
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Problems solved by technology

[0004] In view of this, the present invention provides a method and device for digital X-ray image scatter correction to solve the technical problem of low image scatter correction accuracy existing in the prior art

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  • Method and device for correcting scattering of digital X-ray image
  • Method and device for correcting scattering of digital X-ray image
  • Method and device for correcting scattering of digital X-ray image

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Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] The accuracy of image scatter correction in the prior art is not high mainly because the accuracy of the key parameters in the scatter model cannot be guaranteed. Therefore, the method and device for digital X-ray image scatter correction provided in the embodiment of the present invention aim at The existing problem is to define a certain image quality evaluation index by means of quantification, so that the initial value of a key parameter corresponding to a certain exposure condition and phantom information can be adjusted within the disturbance range, so that the image quality evaluation index can reach the optimal adjustment value as The image quality evaluation index and the optimal key pa...

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Abstract

The invention discloses method and device for correcting scattering of a digital X-ray image, and aims at improving the accuracy of correction of the scattering of the images. The method comprises the steps of determining image quality evaluation quality, die body information, exposure conditions and a scattering model; simulating the image scattering process of the scattering model according to the exposure condition and the die body information; calculating or measuring to obtain the initial value of key parameters of the scattering module; adjusting key parameters within the disturbance range of the initial value of each key parameter; selecting the key parameter which enables the optimal image quality evaluation index as the optimal key parameter of the scattering model under the image quality evaluation index, the exposure condition and the die body information.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to a method and device for digital X-ray image scattering correction. Background technique [0002] In X-ray photography, there are cases where scattered rays contaminate the generated images. At present, the hardware barrier can be used to suppress the scattered rays from being received by the detector, reduce the pollution degree of the image by the scattered rays, and improve the image quality, but the use of the hardware barrier requires an increase in the shooting dose, which brings safety hazards to the subject. If the hardware gate is replaced by the software gate, under the premise of obtaining the same quality image, the dose required by the software gate is generally smaller, which is more beneficial to the health of the subject. [0003] In the prior art, the method for image scattering correction using a software grid is usually as follows: determine th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 李海春李岑
Owner NEUSOFT MEDICAL SYST CO LTD
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