Data correction method and device, computer equipment, storage medium and program product

A computer program and data correction technology, which is applied in the field of medical data processing, can solve the problem of poor improvement of detector response uniformity and achieve the effect of improving the correction effect

Pending Publication Date: 2022-05-13
WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD
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However, flat-field correction is less effective in

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  • Data correction method and device, computer equipment, storage medium and program product
  • Data correction method and device, computer equipment, storage medium and program product
  • Data correction method and device, computer equipment, storage medium and program product

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[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0045] The data correction method provided in the embodiment of this application can be applied to such as figure 1 In the shown application environment, the application environment includes a terminal 100 and a medical scanning device 200 . Wherein, the terminal 100 can communicate with the medical scanning device 200 through a network. The terminal 100 may be, but not limited to, various personal computers, notebook computers and tablet computers. The medical scanning device 200 may be, but not limited to, a CT (Computed Tomography, computerized tomography) device and ...

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Abstract

The invention relates to a data correction method and device, computer equipment, a storage medium and a program product. The method comprises the following steps: acquiring a three-dimensional coordinate of a detector pixel unit, and calculating cosine correction data according to the three-dimensional coordinate of the detector pixel unit and a focus coordinate of a ray emission device; determining to-be-corrected response data of the detector, and correcting the to-be-corrected response data by using the cosine correction data to obtain target data; and determining a correction coefficient corresponding to the detector pixel unit according to the target data, and correcting the response data of the to-be-detected object according to the correction coefficient. By adopting the method, the effect of correcting the response non-uniformity of the pixel units of the detector can be improved.

Description

technical field [0001] The present application relates to the technical field of medical data processing, in particular to a data correction method, device, computer equipment, storage medium and computer program product. Background technique [0002] Computed Tomography (CT) equipment is an image detection equipment commonly used in scientific research institutions or hospitals. With the development of science and technology, photon counting detectors are gradually widely used in CT equipment. However, photon-counting detectors suffer from non-uniform response across pixels, which can lead to artifacts in the reconstructed image. [0003] In the traditional technology, the response data of the detector pixel unit is corrected by adopting a flat field correction (Flat Field Correction) method, so as to improve the response uniformity of the detector pixel unit, thereby eliminating artifacts in the reconstructed image. However, flat-field correction is less effective in impr...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B6/00
CPCA61B6/032A61B6/037A61B6/4266A61B6/4411A61B6/5205A61B6/5211A61B6/583
Inventor 徐探许文挺杨维
Owner WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD
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