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Main Authors: Sun, Shuchen, Shi, Ligen, Liu, Chang, Wu, Lina, Qiu, Jun
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2506.16773
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author Sun, Shuchen
Shi, Ligen
Liu, Chang
Wu, Lina
Qiu, Jun
author_facet Sun, Shuchen
Shi, Ligen
Liu, Chang
Wu, Lina
Qiu, Jun
contents Infrared and visible light image fusion aims to combine the strengths of both modalities to generate images that are rich in information and fulfill visual or computational requirements. This paper proposes an image fusion method based on Implicit Neural Representations (INR), referred to as INRFuse. This method parameterizes a continuous function through a neural network to implicitly represent the multimodal information of the image, breaking through the traditional reliance on discrete pixels or explicit features. The normalized spatial coordinates of the infrared and visible light images serve as inputs, and multi-layer perceptrons is utilized to adaptively fuse the features of both modalities, resulting in the output of the fused image. By designing multiple loss functions, the method jointly optimizes the similarity between the fused image and the original images, effectively preserving the thermal radiation information of the infrared image while maintaining the texture details of the visible light image. Furthermore, the resolution-independent characteristic of INR allows for the direct fusion of images with varying resolutions and achieves super-resolution reconstruction through high-density coordinate queries. Experimental results indicate that INRFuse outperforms existing methods in both subjective visual quality and objective evaluation metrics, producing fused images with clear structures, natural details, and rich information without the necessity for a training dataset.
format Preprint
id arxiv_https___arxiv_org_abs_2506_16773
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Infrared and Visible Image Fusion Based on Implicit Neural Representations
Sun, Shuchen
Shi, Ligen
Liu, Chang
Wu, Lina
Qiu, Jun
Computer Vision and Pattern Recognition
Infrared and visible light image fusion aims to combine the strengths of both modalities to generate images that are rich in information and fulfill visual or computational requirements. This paper proposes an image fusion method based on Implicit Neural Representations (INR), referred to as INRFuse. This method parameterizes a continuous function through a neural network to implicitly represent the multimodal information of the image, breaking through the traditional reliance on discrete pixels or explicit features. The normalized spatial coordinates of the infrared and visible light images serve as inputs, and multi-layer perceptrons is utilized to adaptively fuse the features of both modalities, resulting in the output of the fused image. By designing multiple loss functions, the method jointly optimizes the similarity between the fused image and the original images, effectively preserving the thermal radiation information of the infrared image while maintaining the texture details of the visible light image. Furthermore, the resolution-independent characteristic of INR allows for the direct fusion of images with varying resolutions and achieves super-resolution reconstruction through high-density coordinate queries. Experimental results indicate that INRFuse outperforms existing methods in both subjective visual quality and objective evaluation metrics, producing fused images with clear structures, natural details, and rich information without the necessity for a training dataset.
title Infrared and Visible Image Fusion Based on Implicit Neural Representations
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2506.16773