Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images

To overcome the limitations of traditional image alignment methods in capturing deep semantic features, a deep feature information image alignment network (DFA-Net) is proposed. This network aims to enhance image alignment performance through multi-level feature learning. DFA-Net is based on the dee...

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Main Authors: Lin Zhu, Yuxing Mao, Jianyu Pan
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Sensors
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Online Access:https://www.mdpi.com/1424-8220/25/15/4628
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author Lin Zhu
Yuxing Mao
Jianyu Pan
author_facet Lin Zhu
Yuxing Mao
Jianyu Pan
author_sort Lin Zhu
collection DOAJ
description To overcome the limitations of traditional image alignment methods in capturing deep semantic features, a deep feature information image alignment network (DFA-Net) is proposed. This network aims to enhance image alignment performance through multi-level feature learning. DFA-Net is based on the deep residual architecture and introduces spatial pyramid pooling to achieve cross-scalar feature fusion, effectively enhancing the feature’s adaptability to scale. A feature enhancement module based on the self-attention mechanism is designed, with key features that exhibit geometric invariance and high discriminative power, achieved through a dynamic weight allocation strategy. This improves the network’s robustness to multimodal image deformation. Experiments on two public datasets, MSRS and RoadScene, show that the method performs well in terms of alignment accuracy, with the RMSE metrics being reduced by 0.661 and 0.473, and the SSIM, MI, and NCC improved by 0.155, 0.163, and 0.211; and 0.108, 0.226, and 0.114, respectively, compared with the benchmark model. The visualization results validate the significant improvement in the features’ visual quality and confirm the method’s advantages in terms of stability and discriminative properties of deep feature extraction.
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spelling doaj-art-be4cada7b63247ee8008cc1be89ed20c2025-08-20T03:36:23ZengMDPI AGSensors1424-82202025-07-012515462810.3390/s25154628Image Alignment Based on Deep Learning to Extract Deep Feature Information from ImagesLin Zhu0Yuxing Mao1Jianyu Pan2State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, ChinaTo overcome the limitations of traditional image alignment methods in capturing deep semantic features, a deep feature information image alignment network (DFA-Net) is proposed. This network aims to enhance image alignment performance through multi-level feature learning. DFA-Net is based on the deep residual architecture and introduces spatial pyramid pooling to achieve cross-scalar feature fusion, effectively enhancing the feature’s adaptability to scale. A feature enhancement module based on the self-attention mechanism is designed, with key features that exhibit geometric invariance and high discriminative power, achieved through a dynamic weight allocation strategy. This improves the network’s robustness to multimodal image deformation. Experiments on two public datasets, MSRS and RoadScene, show that the method performs well in terms of alignment accuracy, with the RMSE metrics being reduced by 0.661 and 0.473, and the SSIM, MI, and NCC improved by 0.155, 0.163, and 0.211; and 0.108, 0.226, and 0.114, respectively, compared with the benchmark model. The visualization results validate the significant improvement in the features’ visual quality and confirm the method’s advantages in terms of stability and discriminative properties of deep feature extraction.https://www.mdpi.com/1424-8220/25/15/4628image alignmentdeep learningfeature extractioninfrared and visible images
spellingShingle Lin Zhu
Yuxing Mao
Jianyu Pan
Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
Sensors
image alignment
deep learning
feature extraction
infrared and visible images
title Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
title_full Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
title_fullStr Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
title_full_unstemmed Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
title_short Image Alignment Based on Deep Learning to Extract Deep Feature Information from Images
title_sort image alignment based on deep learning to extract deep feature information from images
topic image alignment
deep learning
feature extraction
infrared and visible images
url https://www.mdpi.com/1424-8220/25/15/4628
work_keys_str_mv AT linzhu imagealignmentbasedondeeplearningtoextractdeepfeatureinformationfromimages
AT yuxingmao imagealignmentbasedondeeplearningtoextractdeepfeatureinformationfromimages
AT jianyupan imagealignmentbasedondeeplearningtoextractdeepfeatureinformationfromimages