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| Adjacent Feature Combination Based Adaptive Fusion Network for Infrared and Visible Images |
| XU Shaoping1, CHEN Xiaojun1, LUO Jie2, CHENG Xiaohui1, XIAO Nan1 |
1. School of Mathematics and Computer Sciences, Nanchang University, Nanchang 330031;
2. Infectious Disease Hospital Affiliated to Nanchang University, Nanchang 330006 |
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Abstract To obtain an infrared and visible fusion image with clear target edges and rich texture details,a fusion network model, adjacent feature combination based adaptive fusion network(AFCAFNet) is proposed based on the classical feed-forward denoising convolutional neural network(DnCNN) backbone network by improving the network architecture and the loss function of the model. The feature channels of several adjacent convolutional layers in the first half of DnCNN network are fully fused by adopting the strategy of expanding the number of channels, and the abilities of the model to extract and transmit feature information are consequently enhanced. All batch normalization layers in the network are removed to improve the computational efficiency, and the original rectified linear unit(ReLU) is replaced with the leaky ReLU to alleviate the gradient disappearance problem. To better handle the fusion of images with different scene contents, the gradient feature responses of infrared and visible images are extracted respectively based on the VGG16 image classification model. After normalization, they are regarded as the weight coefficients for the infrared image and visible image ,respectively. The weight coefficients are applied to three loss functions, namely mean square error, structural similarity and total variation. Experimental results on the benchmark databases show that AFCAFNet holds significant advantages in both subjective and objective evaluations. In addition, AFCAFNet achieves superior overall performance in subjective visual perception with clearer edges and richer texture details for specific targets and it is more in line with the characteristics of human visual perception.
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Received: 20 September 2022
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| Fund:National Natural Science Foundation of China(No.62162043,61902168), Jiangxi Postgraduate Innovation Special Fund Project(No.YC2022-s033) |
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Corresponding Authors:
XU Shaoping, Ph.D., professor. His research interests include graphics and image processing technology, machine vision and virtual surgical simulation.
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| About author:: CHEN Xiaojun, master student. His research interests include graphics and image processing technology.LUO Jie, bachelor. Her research interests include medical image processing technology.CHENG Xiaohui, master student. Her research interests include graphics and image processing technology.XIAO Nan, master student. His research interests include graphics and image proce-ssing technology. |
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2022, Vol. 35 
