OSDM-MReg: Multimodal Image Registration based One Step Diffusion Model

• URL: http://arxiv.org/abs/2504.06027v1
• Date: Tue, 08 Apr 2025 13:32:56 GMT
• Title: OSDM-MReg: Multimodal Image Registration based One Step Diffusion Model
• Authors: Xiaochen Wei, Weiwei Guo, Wenxian Yu, Feiming Wei, Dongying Li,
• Abstract summary: Multimodal remote sensing image registration aligns images from different sensors for data fusion and analysis.<n>We propose OSDM-MReg, a novel multimodal image registration framework based image-to-image translation.<n> Experiments demonstrate superior accuracy and efficiency across various multimodal registration tasks.
• Score: 8.619958921346184
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multimodal remote sensing image registration aligns images from different sensors for data fusion and analysis. However, current methods often fail to extract modality-invariant features when aligning image pairs with large nonlinear radiometric differences. To address this issues, we propose OSDM-MReg, a novel multimodal image registration framework based image-to-image translation to eliminate the gap of multimodal images. Firstly, we propose a novel one-step unaligned target-guided conditional denoising diffusion probabilistic models(UTGOS-CDDPM)to translate multimodal images into a unified domain. In the inference stage, traditional conditional DDPM generate translated source image by a large number of iterations, which severely slows down the image registration task. To address this issues, we use the unaligned traget image as a condition to promote the generation of low-frequency features of the translated source image. Furthermore, during the training stage, we add the inverse process of directly predicting the translated image to ensure that the translated source image can be generated in one step during the testing stage. Additionally, to supervised the detail features of translated source image, we propose a new perceptual loss that focuses on the high-frequency feature differences between the translated and ground-truth images. Finally, a multimodal multiscale image registration network (MM-Reg) fuse the multimodal feature of the unimodal images and multimodal images by proposed multimodal feature fusion strategy. Experiments demonstrate superior accuracy and efficiency across various multimodal registration tasks, particularly for SAR-optical image pairs.

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