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Image truncation artifact correction method and device, equipment and storage medium

A correction method and image technology, applied in the field of image processing, can solve problems such as inaccurate results and inability to solve all-angle truncation

Pending Publication Date: 2020-09-08
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] If the first type of method is used, it must be scanned at all angles, and it must be processed after a week of scanning, and the problem of truncation at all angles cannot be solved; if the second type of method is used, the results are often not accurate enough

Method used

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  • Image truncation artifact correction method and device, equipment and storage medium
  • Image truncation artifact correction method and device, equipment and storage medium
  • Image truncation artifact correction method and device, equipment and storage medium

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Experimental program
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Embodiment 1

[0045] image 3 It is a flow chart of the method for correcting image truncation artifacts provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of correcting truncation artifacts in images, and the method can be executed by an image truncation artifact correction device. The apparatus for correcting image truncation artifacts may be implemented by software and / or hardware, and the apparatus for correcting image truncation artifacts may be configured on a computing device, specifically including the following steps:

[0046] S110. Acquire a target frontal image and a target lateral image for truncation correction of the scanned object.

[0047] Exemplarily, the object to be scanned may be any object requiring image scanning. The target upright image can be any one or several upright scan images selected from all scanned images of the scanned object for truncation correction. In the target upright image for truncation correction, it is pr...

Embodiment 2

[0060] Figure 5 The flow chart of the image truncation artifact correction method provided by the second embodiment of the present invention, the technical solution of the embodiment of the present invention is based on the technical solution of the above-mentioned embodiment, and further refines the technical solution of the above-mentioned embodiment, specifically Including the following steps:

[0061] S210. Acquire a target frontal image and a target lateral image for truncation correction of the scanned object.

[0062] S220. Determine respectively whether the first middle line data of the target front image and the second middle line data of the target lateral image are truncated.

[0063]Exemplarily, the first middle row data may be the target middle row data to be studied in the target orthographic image, where the target middle row data may be the middle row data of the target orthographic image, or the middle row preset range row Several rows of data, specifically...

Embodiment 3

[0101] Figure 7 The flow chart of the image truncation artifact correction method provided by the third embodiment of the present invention, the technical solution of the embodiment of the present invention is based on the technical solution of the above-mentioned embodiment, and further refines the technical solution of the above-mentioned embodiment, specifically Including the following steps:

[0102] S310. Acquire a target frontal image and a target lateral image for truncation correction of the scanned object.

[0103] S320. Determine respectively whether the first middle line data of the target front image and the second middle line data of the target lateral image are truncated.

[0104] S330. Perform smoothing processing on the first middle row data of the frontal image of the target and the second middle row data of the lateral image of the target, respectively, to obtain first smoothed data and second smoothed data.

[0105] S340. When the number of truncated imag...

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Abstract

The embodiment of the invention discloses an image truncation artifact correction method and device, equipment and a storage medium. The method comprises the following steps: acquiring a target normalimage and a target side image for truncation correction of a scanned object; determining the total truncation amount of the scanned image of the scanned object according to the truncation states of the target normal image and the target side image and the image data of the target normal image and the target side image; determining an extrapolation length of the scanned image based on the total truncation amount; and performing truncation artifact correction on the scanned image based on the extrapolation width. The effect of accurate truncation artifact correction on the images is achieved.

Description

technical field [0001] Embodiments of the present invention relate to image processing technologies, and in particular, to an image truncation artifact correction method, device, device, and storage medium. Background technique [0002] During X-ray 3D scanning, due to the obesity of the patient and the small size of the flat-panel detector, a part of the object to be scanned may be outside the scanning field of view (Field of View, FOV). Part of the projection data of the angle will fall outside the detector, and we can only detect the projection data within the FOV range, which causes the edge of the projection data to be discontinuous. The shadow will make the reconstruction result of the FOV edge area blurred and seriously affect the image quality. How to solve this problem is one of the important directions to be studied at present. [0003] At present, the methods for dealing with truncation artifact correction are mainly divided into two categories: the first categor...

Claims

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Application Information

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IPC IPC(8): A61B6/00G06T11/00
CPCA61B6/48G06T11/008A61B6/5235A61B6/5252A61B6/5258
Inventor 冷官冀陆学飞牛杰周海华
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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