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Solid engines CT image division method

A solid engine, CT image technology, applied in image analysis, image enhancement, image data processing, etc., can solve the problems of poor segmentation effect and non-universal applicability, and achieve the effect of low efficiency and poor accuracy

Inactive Publication Date: 2009-01-07
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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Problems solved by technology

[0005] In order to overcome the defects of poor segmentation effect and non-universal applicability of the solid motor CT image segmentation method in the prior art, the present invention proposes a solid motor CT image segmentation method

Method used

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  • Solid engines CT image division method

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Embodiment Construction

[0035] A solid engine CT image segmentation method provided by the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] figure 1 It shows the overall flow of the solid motor CT image segmentation method according to the embodiment of the present invention. Firstly, the data of the solid motor CT tomographic image (hereinafter referred to as CT image) is read in; The air ring artifacts formed by air disturbance outside the solid motor casing; the image after de-artifacting is filtered by median filtering to filter out the background noise, and at the same time sharpen the edges of the components of the solid motor in the CT image; based on the multi-threshold method, Segment solid engine case, propellant, and star holes in CT images; finally segment defects from propellant.

[0037] In the above embodiment, firstly, the CT tomographic image data of the solid motor is read in.

[0038] figure 2 is ...

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Abstract

The invention discloses a splitting method of a CD image of a solid engine. The method comprises the following steps: a CD faultage image data of the solid engine is read in, an artifact which is formed outside the solid engine owning to the air agitation formed in the CD detection is eliminated; the image, the artifact of which is eliminated, filters and eliminates background noise by median filter, meanwhile, the edges of each component of the solid engine are sharpened in the CD image and a casing, a propelling agent and an astropyle of the solid engine is cut in the CD image; a defect is cut from the propelling agent. By adopting the method, an outer layer air ring artifact, the casing, the propelling agent, the astropyle and various defects of the solid engine in the CD image are cut automatically and accurately, thus solving the problem of low efficiency and poor accuracy in the CD detection image of the solid engine by the manual interpretation as well as being not limited by the eigenvalue of image information.

Description

technical field [0001] The present invention relates to the technical field of image segmentation, and more specifically, the present invention relates to a method for segmenting CT images of solid motors. Background technique [0002] The safety performance of solid motors has always been a hot topic of research. Any defect exceeding the standard inside a solid motor may affect the overall performance of the motor and even cause catastrophic accidents. Since the 1980s, industrial CT, as an advanced non-destructive testing method, has achieved rapid development and been widely used. The use of industrial CT technology to detect solid motors can detect many problems that are difficult to detect by conventional non-destructive testing methods, greatly improving the safety performance of solid motors. At present, in the CT inspection of solid-state motors, the tomographic images completely rely on the inspectors to manually interpret the components and internal defects, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/00
Inventor 卢洪义朱敏侯志强李海燕程继红刘旭东
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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