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Method, device, equipment and storage medium for correcting motion artifacts

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: 2022-03-04
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, device, equipment and storage medium for correcting motion artifacts
  • Method, device, equipment and storage medium for correcting motion artifacts
  • Method, device, equipment and storage medium for correcting motion artifacts

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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 present application discloses a method, device, device, and storage medium for correcting motion artifacts, the method comprising: acquiring projection data of an object to be inspected; and mapping the object to be inspected by tracking the centroid of the acquired projection data The movement characteristics of the centroid of the center of mass changing with the scanning time; based on the movement characteristics, the projection data with movement characteristics in the acquired projection data are corrected, wherein the projection data with movement characteristics include: when the object under inspection moves at its center of mass The scanned data; performing image reconstruction according to the corrected projection data to obtain a reconstructed image of the inspected object. By implementing the present application, by correcting the projection data with motion characteristics, the influence of the scan data obtained when the object under inspection moves on the reconstructed image can be effectively reduced, so that motion artifacts 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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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10081G06T2207/10104G06T2207/30196G06T5/77
Inventor 楼珊珊佟丽霞
Owner NEUSOFT MEDICAL SYST CO LTD