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arXiv 2301.08072cs.CV

Dif-Fusion:利用扩散模型实现红外与可见光图像融合中的高色彩保真度

Dif-Fusion: Towards High Color Fidelity in Infrared and Visible Image Fusion with Diffusion Models

Central South University(中南大学);Changsha University of Science and Technology(长沙理工大学);Hunan University(湖南大学);Peng Cheng Laboratory(鹏城实验室);Beihang University(北京航空航天大学);Wuhan University(武汉大学)

Jun Yue, Leyuan Fang, Shaobo Xia, Yue Deng, Jiayi Ma

AI总结:

本文提出 Dif-Fusion,通过潜在空间扩散过程建模多通道红外与可见光数据分布,并结合多通道融合及梯度、强度损失,实现更高色彩保真度的三通道融合图像。

摘要:

色彩在人类视觉感知中发挥着重要作用,反映了物体的光谱。然而,现有的红外与可见光图像融合方法很少探索如何直接处理多光谱/多通道数据并实现高色彩保真度。本文针对上述问题,提出了一种采用扩散模型的新颖方法,称为 Dif-Fusion,用于生成多通道输入数据的分布,从而增强多源信息聚合能力和色彩保真度。具体而言,不同于现有融合方法将多通道图像转换为单通道数据,我们在潜在空间中通过前向和反向扩散过程,利用去噪网络创建多通道数据分布。随后,我们使用该去噪网络提取同时包含可见光和红外信息的多通道扩散特征。最后,我们将多通道扩散特征输入多通道融合模块,以直接生成三通道融合图像。为保留纹理和强度信息,我们提出了多通道梯度损失和强度损失。除了当前用于衡量纹理和强度保真度的评价指标外,我们还引入了一种新的评价指标来量化色彩保真度。大量实验表明,我们的方法比其他最先进的图像融合方法更有效,尤其是在色彩保真度方面。

英文摘要:

Color plays an important role in human visual perception, reflecting the spectrum of objects. However, the existing infrared and visible image fusion methods rarely explore how to handle multi-spectral/channel data directly and achieve high color fidelity. This paper addresses the above issue by proposing a novel method with diffusion models, termed as Dif-Fusion, to generate the distribution of the multi-channel input data, which increases the ability of multi-source information aggregation and the fidelity of colors. In specific, instead of converting multi-channel images into single-channel data in existing fusion methods, we create the multi-channel data distribution with a denoising network in a latent space with forward and reverse diffusion process. Then, we use the the denoising network to extract the multi-channel diffusion features with both visible and infrared information. Finally, we feed the multi-channel diffusion features to the multi-channel fusion module to directly generate the three-channel fused image. To retain the texture and intensity information, we propose multi-channel gradient loss and intensity loss. Along with the current evaluation metrics for measuring texture and intensity fidelity, we introduce a new evaluation metric to quantify color fidelity. Extensive experiments indicate that our method is more effective than other state-of-the-art image fusion methods, especially in color fidelity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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