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Crack measurement endoscope

A technology for endoscopes and cracks, which can be used in measuring devices, optical testing of flaws/defects, image enhancement, etc., and can solve problems such as low illumination and inability to measure crack length and width

Active Publication Date: 2022-05-06
湖南万航科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual application scene of industrial inspection, the illumination in the scene is low, it is difficult to observe whether there is a crack with the naked eye, and it is impossible to measure the length and width of the crack

Method used

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Embodiment Construction

[0122] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0123] S1: Use the camera of the endoscope to detect the object under test, and use high-definition image sensing technology to transmit the image of the detected object to the display screen and image processing equipment.

[0124] In the S1 step, the camera of the endoscope is used to detect the measured object, including:

[0125] Use the endoscope control equipment in the endoscope detection system to control and select the camera or video function of the endoscope, and control the light intensity of the endoscope camera to capture a static image or dynamic video of the object under test. The diameter of the probe is Φ8mm, the pixel is 1 million, the depth of field is 8-80mm, and the viewing direction is direct view; At the same time, the image processing equipment in the endoscope inspection system measures the ...

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Abstract

The invention relates to the technical field of crack measurement, and discloses a crack measurement endoscope, the endoscope comprises a camera, an endoscope detection system and a host, and the crack measurement process of the endoscope comprises the following steps: detecting a detected object by using the camera of the endoscope; the detected image of the detected object is transmitted to the display screen and the image processing equipment by utilizing a high-definition image sensing technology; performing image enhancement processing on the image of the measured object based on a gamma transformation method; processing the enhanced image by using a corrosion expansion method; detecting cracks in the image by using a crack detection model based on an image pyramid; and measuring the length and width of the marked crack, and marking the measurement result above the crack corresponding to the display image. According to the process disclosed by the invention, the detection image of the endoscope is enhanced, so that real-time crack detection and measurement of a static image and a dynamic video are realized by utilizing a crack detection model in a low-illumination scene.

Description

technical field [0001] The invention relates to the technical field of crack measurement, in particular to a crack measurement endoscope. Background technique [0002] Industrial endoscopes are mainly used in automobiles, aero engines, pipelines, mechanical parts, etc., and can realize non-destructive testing without disassembling or destroying the assembly and stopping the operation of the equipment. They are widely used in aviation, automobiles, ships, electrical, chemical, etc. Various departments of modern core industries such as electricity, gas, atomic energy, and civil engineering. However, in the actual application scene of industrial inspection, the illumination in the scene is low, it is difficult to observe whether there is a crack with the naked eye, and it is impossible to measure the length and width of the crack. To solve this problem, this patent proposes an endoscope for crack measurement. Contents of the invention [0003] The present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G06T7/00G06T5/00
CPCG01N21/8851G06T7/0004G01N2021/8874G01N2021/8887G06T2207/10016G06T2207/20036G06T2207/30108G06T2207/20016G06T5/00
Inventor 黄涛钟鸣杨伟杰梁勇许赞康颖余文桢
Owner 湖南万航科技有限公司
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