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arXiv 2103.16871cs.CV
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基于结构相似性的多模态遥感图像鲁棒配准

Robust Registration of Multimodal Remote Sensing Images Based on Structural Similarity

Southwest Jiaotong University(西南交通大学);University of Trento(特伦托大学);Purdue University(普渡大学)

Yuanxin Ye, Jie Shan, Lorenzo Bruzzone, Li Shen

摘要:

多模态遥感数据的自动配准(例如,光学、LiDAR、SAR)是一项具有挑战性的任务,因为这些数据之间存在显著的非线性辐射差异。为了解决这个问题,本文提出了一种新的特征描述符命名为定向相位一致性直方图(HOPC),这是基于图像的结构特性。此外,一个相似性度量命名为HOPCncc的定义,它使用的归一化相关系数(NCC)的HOPC描述符的多模态配准。在相似性度量的定义中,我们首先扩展了相位一致性模型以生成其方向表示,并使用扩展的模型来构建HOPCncc。然后针对该度量设计了一种快速模板匹配方案,用于检测图像间的控制点。建议HOPCncc的目的是捕捉图像之间的结构相似性,并已测试了各种光学,激光雷达,SAR和地图数据。结果表明,HOPCncc对复杂的非线性辐射差异具有鲁棒性,并且优于最先进的相似性度量(即,NCC和互信息)在匹配性能上的差异。此外,本文还提出了一种基于HOPCncc的鲁棒配准方法,并使用六对多模态遥感图像进行了评估。实验结果证明了该方法在多模态图像配准中的有效性。

英文摘要:

Automatic registration of multimodal remote sensing data (e.g., optical, LiDAR, SAR) is a challenging task due to the significant non-linear radiometric differences between these data. To address this problem, this paper proposes a novel feature descriptor named the Histogram of Orientated Phase Congruency (HOPC), which is based on the structural properties of images. Furthermore, a similarity metric named HOPCncc is defined, which uses the normalized correlation coefficient (NCC) of the HOPC descriptors for multimodal registration. In the definition of the proposed similarity metric, we first extend the phase congruency model to generate its orientation representation, and use the extended model to build HOPCncc. Then a fast template matching scheme for this metric is designed to detect the control points between images. The proposed HOPCncc aims to capture the structural similarity between images, and has been tested with a variety of optical, LiDAR, SAR and map data. The results show that HOPCncc is robust against complex non-linear radiometric differences and outperforms the state-of-the-art similarities metrics (i.e., NCC and mutual information) in matching performance. Moreover, a robust registration method is also proposed in this paper based on HOPCncc, which is evaluated using six pairs of multimodal remote sensing images. The experimental results demonstrate the effectiveness of the proposed method for multimodal image registration.

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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