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Aero-engine pipeline image segmentation method and system

A technology of aero-engine and image segmentation, which is used in computer parts, instruments, computing, etc.

Active Publication Date: 2020-10-30
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of this application is to provide a method and system for image segmentation of aero-engine pipelines to solve the problem of automatic segmentation of pipelines in complex industrial scenarios

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  • Aero-engine pipeline image segmentation method and system
  • Aero-engine pipeline image segmentation method and system
  • Aero-engine pipeline image segmentation method and system

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Embodiment Construction

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] figure 1 It is an overall implementation flow chart of the aero-engine pipeline image segmentation method and system of the present invention, specifically comprising the following steps:

[0051] Step 1: Collect aero-engine pipeline images and build pipeline image datasets.

[0052] In this example, about 40 parts are collected on a large aero-engine, and a total of 186 images are obtained. Among them, 112 images are used as the training set, and the remaining 74 images are used as the test set. The size of the image is 512×612 pixels. The pipe width in the image varies from 7 pixels to 50 pixels, including pipes of various scales.

[0053] Step 2: Obtain multi-scale anisotropic feature extraction results based on pipeline images.

[0054] The original image I is preprocessed using path morphology to preserve linear objec...

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Abstract

The invention discloses an aero-engine pipeline image segmentation method and system. The method comprises the following steps: step 1, acquiring a multi-scale anisotropic feature extraction result according to a pipeline image; step 2, fusing the plurality of features into a conditional random field for feature fusion, and obtaining a pipeline binary segmentation result after training the featureweight; and 3, performing pipeline tracking according to the skeleton line of the binary segmentation result, and connecting the pipeline candidate regions based on the cross section similarity to obtain an instance segmentation result. According to the pipeline image segmentation method and system, geometric information and local information of the pipeline are fully utilized to achieve the purpose of segmenting the pipeline, and the problem of aero-engine pipeline image segmentation in a complex industrial scene is solved.

Description

technical field [0001] The present invention relates to the field of image processing and machine vision, in particular to a method and system for segmenting an aero-engine pipeline image. Background technique [0002] Aeroengine is a highly complex and precise mechanical structure, which ensures the stability and reliability of the aircraft during operation. Pipelines are responsible for the transmission of liquid and gaseous media such as fuel, lubricating oil and air, and are an important part of aero-engines. There will be a lot of vibration in the operation of the aero-engine. If the gap between the pipelines is too small, a large amount of friction will be generated due to the vibration, which will affect the reliable operation of the engine. In the traditional method, workers rely on plug gauges to measure gaps to troubleshoot hidden troubles, which makes the workload cumbersome and inefficient. In recent years, the method of machine vision has been widely used in t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/34G06K9/62
CPCG06V10/267G06F18/253
Inventor 孙军华张尹
Owner BEIHANG UNIV
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