A CT image reconstruction method and system, terminal and readable storage medium

A technology for CT images and image blocks, applied in the fields of CT image reconstruction methods and systems, terminals and readable storage media, can solve problems such as low image quality and loss of image structure details

Active Publication Date: 2020-10-30
SHENZHEN INST OF ADVANCED TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a CT image reconstruction method and system, a terminal and a readable storage medium, aiming to solve the problem that the existing reconstruction algorithm will cause the loss of structural details of the image, and the quality of the reconstructed image is low

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  • A CT image reconstruction method and system, terminal and readable storage medium
  • A CT image reconstruction method and system, terminal and readable storage medium
  • A CT image reconstruction method and system, terminal and readable storage medium

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[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention 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 invention, not to limit the present invention.

[0066] As a first embodiment of the present invention, such as figure 1 Shown, a kind of CT image reconstruction method provided by the present invention, the method comprises:

[0067] Step S101: Perform original CT image reconstruction calculations on CT scan data to obtain original reconstructed images.

[0068] It should be noted that the method provided in this embodiment is performed on the basis of the CT image reconstruction image obtained by the traditional CT image reconstruction method. Therefore, in step S102, the original reconstruction image is optimized for de-fake and de-noising to...

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Abstract

The invention belongs to the medical and industrial CT (Computed Tomography) imaging technical field and relates to a CT (Computed Tomography) image reconstruction method, a CT (Computed Tomography) image reconstruction system, a terminal and a computer readable storage medium. According to the method, a traditional CT image reconstruction method is adopted to generate an original reconstructed image; artifact removal and noise optimization are performed on the original reconstructed image, part of detail structure data which are lost due to optimization are extracted; characteristic operatorsare obtained by using the optimized original reconstructed image; convolution is performed on the lost detail structure data and the characteristic operators, so that a useful detail structure can beextracted from the lost information; obtained convolution data are added to the optimized original reconstructed image; and finally a CT reconstructed image is obtained. According to the method, structure detail features are retained with artifacts and noises decreased, and therefore, image reconstruction can be performed on complete data, and the obtained CT reconstructed image has very high quality and improved accuracy.

Description

technical field [0001] The invention belongs to the technical field of medical and industrial CT imaging, and in particular relates to a CT image reconstruction method and system, a terminal and a readable storage medium. Background technique [0002] The clinical value of computerized tomography (Computed Tomography, CT) is beyond doubt, but X-ray exposure is harmful to patients. At present, in the CT field, the dose of CT radiation is usually reduced by reducing the number of samples, such as under-sampling or sparse sampling methods. However, both undersampling and sparse sampling methods are incomplete sampling. [0003] To solve the problem of incomplete sampling, it is necessary to use CT algorithm to reconstruct the incomplete sampling data. At present, many hardware-based scanning protocols and reconstruction algorithms for processing low-dose sampling data have been proposed. However, when the traditional CT algorithm reconstructs incomplete sampling data, it will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/001G06T5/50G06T2207/10081G06T2207/20021G06T2207/20224
Inventor 胡战利高娟梁栋杨永峰刘新郑海荣
Owner SHENZHEN INST OF ADVANCED TECH
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