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A Multispectral Image Reconstruction Method for Online Detection of Electrical Equipment

A multi-spectral image, electrical equipment technology, applied in image analysis, image enhancement, graphic image conversion and other directions, can solve the problems of incomplete equipment outline and texture, electrical equipment failure, misdiagnosis and missed diagnosis, etc., to reduce information redundancy, algorithmic Stable and reliable effect

Active Publication Date: 2021-06-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are many types of electrical equipment in the power grid, most of the defects or faults have the characteristics of incomplete contour texture, high temperature rise, or discharge. These defects are captured by different imaging devices during the line inspection process. Making inferences based on one-sided parameter information often leads to misdiagnosis and missed diagnosis of electrical equipment failures

Method used

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  • A Multispectral Image Reconstruction Method for Online Detection of Electrical Equipment
  • A Multispectral Image Reconstruction Method for Online Detection of Electrical Equipment
  • A Multispectral Image Reconstruction Method for Online Detection of Electrical Equipment

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Embodiment

[0041] Such as figure 1 As shown, a multi-spectral image reconstruction method for on-line detection of electrical equipment, through the infrared image 1 and visible light image 2 of the same external insulation equipment, the visible light and infrared image registration 4 based on contour information, and through the visible light image 2 and the ultraviolet image 3 carry out the registration of visible light and ultraviolet images based on SIFT (Scale-invariant feature transform) features 5, and extract the characteristic regions of the infrared images after registration 12 and the characteristic regions of the ultraviolet images after registration respectively 13. Effectively superimpose the extracted feature region on the visible light image to realize multispectral image reconstruction of electrical equipment14.

[0042] Visible light and infrared image registration based on contour information 4 includes three parts: visible light and infrared image contour extraction ...

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Abstract

The invention relates to a multi-spectral image reconstruction method for on-line detection of electrical equipment. The method comprises the following steps: separately collecting infrared images, visible light images and ultraviolet images; performing registration of infrared images and visible light images, and performing registration Extract the feature area of ​​the infrared image after alignment; register the visible light image and the ultraviolet image, and extract the feature area of ​​the ultraviolet image after registration; use the visible light image, the infrared image feature area after registration and the ultraviolet image feature area to carry out multi-spectral image reconstruction structure. Compared with the prior art, the present invention has the advantages of reduced information redundancy, more accurate location of faults, and strong algorithm reliability.

Description

technical field [0001] The invention relates to an online detection method for electrical equipment, in particular to a multispectral image reconstruction method for online detection of electrical equipment. Background technique [0002] As the scale of my country's power grid continues to expand, the requirements for the safety and reliability of power grid operation are also getting higher and higher. Long-term operation of electrical equipment will cause wear, oxidation, corrosion, aging, pollution and defects caused by external forces. If they cannot be checked in time, they will develop into faults. Therefore, the operation status detection and fault diagnosis of electrical equipment are still important research contents for smart grid construction. [0003] The popularization and application of unmanned aerial vehicles (UAV) technology on power inspection lines has made image recognition technology develop rapidly in the field of fault detection and diagnosis of electr...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/00G06T7/33G06K9/62G06K9/00
CPCG06T7/337G06T2207/10048G06T2207/20221G06V20/194G06V20/13G06F18/251G06T3/147
Inventor 金立军艾建勇马利戴伟伟
Owner TONGJI UNIV