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A method for detecting wounds on the surface of an aircraft rivet

A detection method, scar technology, applied in the field of image processing, can solve problems such as heavy workload, complicated steps, non-compliance, etc., and achieve the effect of overcoming errors, overcoming and inefficiency

Active Publication Date: 2019-03-15
CHENGDU UNIV OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of detection using acousto-optic method has complicated steps and heavy workload, which does not meet the time-saving and efficient requirements of current work.

Method used

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  • A method for detecting wounds on the surface of an aircraft rivet
  • A method for detecting wounds on the surface of an aircraft rivet
  • A method for detecting wounds on the surface of an aircraft rivet

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] figure 1 It is the flow chart of the flaw detection method on the aircraft rivet surface of the present invention, as figure 1 shown, including the following steps:

[0045] Step 1: Preprocess the collected aircraft rivet images to obtain a binary image with prominent scar targets;

[0046] Step 2: Perform mathematical morphology processing on the prominent binary image of the scar target to identify scars;

[0047] Step 3: Locate the identified scars a...

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Abstract

The invention provides a method for detecting wounds on the surface of an aircraft rivet, The method comprises: By using grayscale and histogram equalization, Median filter, image enhancement, image binarization and binary image filtering are used to preprocess the collected scar images, and then the scar is identified by mathematical morphology. Finally, the scar is located by pixel integral projection and the minimum external rectangular aspect ratio, and the detailed parameter information is obtained. The method of the invention can better identify the longitudinal wound and the transversewound, and displays more detailed wound parameter information, which is of great help to the subsequent research on the wound and the formulation of the standard for eliminating the rivet with the wound.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for detecting flaws on the surface of aircraft rivets. Background technique [0002] During the flight of the aircraft, the scars on the surface of the aircraft rivets are one of the problems affecting the safety of the aircraft. With the development of society and science and technology, the requirements for the manufacturing quality of rivets are getting higher and higher, and the detection of rivet scars in the process of aircraft operation is more important. The traditional acousto-optic method for detection has complicated steps and a large workload, which does not meet the time-saving and high-efficiency requirements of current work. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned defects in the prior art, and provide a method for detecting flaws on the surface of aircraft rivets that can improve w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/136
CPCG06T7/0004G06T7/11G06T7/136G06T2207/30164
Inventor 蒋世奇刘丹妮
Owner CHENGDU UNIV OF INFORMATION TECH