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Method and apparatus for correcting motion artifact, device, and storage medium

A technology of motion artifacts and motion features, applied in the field of image processing, can solve problems such as poor clarity of reconstructed images, and achieve the effect of improving motion artifacts and improving quality

Active Publication Date: 2018-11-23
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a method, device and equipment for correcting motion artifacts to solve the problem of poor clarity of existing reconstructed images

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  • Method and apparatus for correcting motion artifact, device, and storage medium
  • Method and apparatus for correcting motion artifact, device, and storage medium
  • Method and apparatus for correcting motion artifact, device, and storage medium

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Embodiment Construction

[0085] 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 "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0086] The motion artifact involved in the embodiment of the present application refers to the motion artifact caused by the macroscopic motion of the object under inspection during the process of scanning the object under inspection by the imaging system, and can be divided into voluntary motion artifact and physiological motion artifact, wherein, Autonomic motion artifacts refer to artifacts caused by movements that are not periodic and can be controlled autonomous...

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Abstract

The invention discloses a method and apparatus for correcting motion artifact, a device, and a storage medium. The method comprises the following steps: obtaining projection data of a detected object;mapping motion features of the centroid of the detected object changing with the scanning time by tracking the centroid of the obtained projection data; correcting projection data having the motion features in the projection data based on the motion features, wherein the projection data having the motion features comprise data obtained by scanning the moving centroid of the detected object; and performing image reconstruction according to the corrected projection data to obtain a reconstructed image of the detected object. By implementation of the method and apparatus disclosed by the invention, by correcting the projection data having the motion features, the influence of the scanned data during the motion of the detected object on the reconstructed image can be effectively reduced, so that the motion artifact in the reconstructed image can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a method, device, device and storage medium for correcting motion artifacts. Background technique [0002] CT is a technology that uses X-ray beams to scan a certain part of the subject, and obtains a CT image composed of pixels through a series of processing on the scanning results. Wherein, the CT image is a reconstructed image, also called a CT reconstructed image. Taking the human body as an example, when performing a CT scan on certain parts of the human body, due to the voluntary or physiological movement of the human body, motion artifacts may appear in the reconstructed image (the structure of the scanned part is blurred or ghosting) . [0003] The appearance of motion artifacts will reduce the clarity of the CT reconstruction image, thereby affecting the accuracy of the diagnosis result obtained based on the CT reconstruction image. Contents of...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/10081G06T2207/10104G06T2207/30196G06T5/77
Inventor 楼珊珊佟丽霞
Owner NEUSOFT MEDICAL SYST CO LTD