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Article

Image Fusion and Target Detection Based on Dual ResNet for Power Sensing Equipment

1
School of Communication and Artificial Intelligence, Nanjing Institute of Technology, Nanjing 211167, China
2
School of Integrated Circuits, Nanjing Institute of Technology, Nanjing 211167, China
3
School of Electric Power Engineering (School of Shen Guorong), Nanjing Institute of Technology, Nanjing 211167, China
*
Author to whom correspondence should be addressed.
Sensors 2025, 25(9), 2858; https://doi.org/10.3390/s25092858
Submission received: 6 March 2025 / Revised: 22 April 2025 / Accepted: 25 April 2025 / Published: 30 April 2025
(This article belongs to the Special Issue Machine Learning and Image-Based Smart Sensing and Applications)

Abstract

Target detection helps to identify, locate, and monitor key components and potential issues in power sensing networks. The fusion of infrared and visible light images can effectively integrate the target the indication characteristics of infrared images and the rich scene detail information of visible light images, thereby enhancing the ability for target detection in power equipment in complex environments. In order to improve the registration accuracy and feature extraction stability of traditional registration algorithms for infrared and visible light images, an image registration method based on an improved SIFT algorithm is proposed. The image is preprocessed to a certain extent, using edge detection algorithms and corner detection algorithms to extract relatively stable feature points, and the feature vectors with excessive gradient values in the normalized visible light image are truncated and normalized again to eliminate the influence of nonlinear lighting. To address the issue of insufficient deep information extraction during image fusion using a single deep learning network, a dual ResNet network is designed to extract deep level feature information from infrared and visible light images, improving the similarity of the fused images. The image fusion technology based on the dual ResNet network was applied to the target detection of sensing insulators in the power sensing network, improving the average accuracy of target detection. The experimental results show that the improved registration algorithm has increased the registration accuracy of each group of images by more than 1%, the structural similarity of image fusion in the dual ResNet network has been improved by about 0.2% compared to in the single ResNet network, and the mean Average Precision (mAP) of the fusion image obtained via the dual ResNet network has been improved by 3% and 6% compared to the infrared and visible light images, respectively.
Keywords: fusion; registration; structural similarity; target detection; sensing insulator fusion; registration; structural similarity; target detection; sensing insulator

Share and Cite

MDPI and ACS Style

Yang, J.; Yan, W.; Yuan, S.; Yu, Y.; Mao, Z.; Chen, R. Image Fusion and Target Detection Based on Dual ResNet for Power Sensing Equipment. Sensors 2025, 25, 2858. https://doi.org/10.3390/s25092858

AMA Style

Yang J, Yan W, Yuan S, Yu Y, Mao Z, Chen R. Image Fusion and Target Detection Based on Dual ResNet for Power Sensing Equipment. Sensors. 2025; 25(9):2858. https://doi.org/10.3390/s25092858

Chicago/Turabian Style

Yang, Jie, Wei Yan, Shuai Yuan, Yu Yu, Zheng Mao, and Rui Chen. 2025. "Image Fusion and Target Detection Based on Dual ResNet for Power Sensing Equipment" Sensors 25, no. 9: 2858. https://doi.org/10.3390/s25092858

APA Style

Yang, J., Yan, W., Yuan, S., Yu, Y., Mao, Z., & Chen, R. (2025). Image Fusion and Target Detection Based on Dual ResNet for Power Sensing Equipment. Sensors, 25(9), 2858. https://doi.org/10.3390/s25092858

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