融合双域特征与跨维门控注意力的遥感图像配准
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1.上海应用技术大学智能技术学部 上海 201418;2.同济大学中德工程学院 上海 201804

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TN919.8

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国家自然科学基金面上项目(61976140)、上海应用技术大学协同创新基金项目(XTCX2022-25)资助


Remote sensing image registration integrating dual-domain feature and cross-dimensional gated attention
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1.Faculty of Intelligence Technology, Shanghai Institute of Technology,Shanghai 201418, China; 2.College of Sino-German Engineering, Tongji University,Shanghai 201804, China

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    摘要:

    针对遥感图像配准中复杂环境带来的特征提取困难、多尺度几何变形造成的配准精度受限等挑战,本文提出一种融合双域特征与跨维门控注意力的遥感图像配准模型。首先,在特征提取阶段设计多尺度傅里叶模块改进StarNet网络结构通过融合多尺度的空间特征与频域特征进行特征提取,增强模型的特征提取能力;接着,设计跨维门控注意力,使得模型能够在不牺牲全局感受野的情况下,高效地捕捉图像中的上下文信息;其次,在特征匹配阶段,采用基于部分分配矩阵的双向匹配方法获取双向参数,最终通过仿射变换实现图像配准。在使用Aerial Image数据集进行实验时,研究结果表明,当正确估计的关键点比例系数分别设置为0.01、0.03和0.05时,配准精度分别达到了42.8%、85.7%和96.9%,且平均配准时间为0.87 s,有效提升了遥感图像配准的精度和速度。

    Abstract:

    Aiming at the challenges of remote sensing image registration such as feature extraction difficulties caused by complex environment and registration accuracy limitations caused by multi-scale geometric deformation, this paper proposes a remote sensing image registration model that integrates dual-domain features and cross-dimensional gated attention. Firstly, the multi-scale Fourier module is designed in the feature extraction stage to improve the StarNet network structure to enhance the feature extraction capability of the model by fusing the multi-scale spatial features with the frequency domain features; then, the cross-dimensional gated attention is designed so that the model can efficiently capture the contextual information in the image without sacrificing the global sensing field; secondly, the feature matching stage bidirectional parameters are obtained by applying bidirectional matching based on partial assignment matrix, and finally, the registration is completed by affine transformation. In the experiments using the aerial image dataset, the results show that when the correctly estimated keypoint scale factor is set to 0.01, 0.03 and 0.05, the registration accuracy reaches 42.8%, 85.7% and 96.9%, respectively, and the average registration time is 0.87 s, which significantly improves the accuracy and speed of remote sensing image registration.

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魏庭旭,陈颖,李铖昊,马文浩.融合双域特征与跨维门控注意力的遥感图像配准[J].电子测量技术,2026,49(4):217-226

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  • 在线发布日期: 2026-04-16
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