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CT image noise reducing method, device and computer equipment

A CT image, noise reduction technology, applied in the field of image processing, can solve the problems of fine tissue loss, noise reduction image over-smoothing, etc., to achieve the effect of reducing noise level, easy maintenance, and reducing CT image noise

Active Publication Date: 2018-01-23
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present application provides a method, device and computer equipment for reducing the noise of CT images to solve the problem that the noise-reduced image is too smooth and some fine tissues are lost after the existing method is used to reduce the noise of the CT image

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  • CT image noise reducing method, device and computer equipment
  • CT image noise reducing method, device and computer equipment
  • CT image noise reducing method, device and computer equipment

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Embodiment Construction

[0040] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0041] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a CT image noise reducing method, device and computer equipment. The method includes generating an original CT image according to original data acquired through scanning, wherein the number of pixels contained by the original CT image is greater than a preset target pixel number; performing iteration noise reduction on the original CT image and acquiring a noise reduced image; adopting an interpolation algorithm for compressing the noise reduced image into a target image containing the target pixel number. According to the invention, the target image having a reduced noise level and a kept subtle organization structure can be acquired.

Description

technical field [0001] The present application relates to image processing technology, in particular to a method, device and computer equipment for reducing CT image noise. Background technique [0002] In recent years, in computerized tomography (CT) technology, X-ray radiation is often reduced by reducing the tube current or tube voltage of the X-ray tube. However, reducing the tube current or tube voltage of the X-ray tube The voltage will increase the blocky and granular noise of the CT image, reduce the image quality, and then affect the diagnosis. Therefore, it is necessary to perform noise reduction processing on the CT image. [0003] At present, the principal component analysis method is often used to denoise the CT image to obtain the denoised CT image. However, when using the existing method to denoise the CT image, it is very easy to cause the problem that the denoised image is too smooth and some fine tissues are lost. Contents of the invention [0004] In v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/20G06T5/50
CPCG06T11/008G06T2207/10081G06T5/50G06T5/70G06T5/20G06T2207/20221G06T3/4007G06T2207/10072
Inventor 楼珊珊陈昊逄岭
Owner NEUSOFT MEDICAL SYST CO LTD