Journal
REMOTE SENSING
Volume 14, Issue 18, Pages -Publisher
MDPI
DOI: 10.3390/rs14184595
Keywords
multimodal image matching; semantic road features; local binary entropy descriptor; feature matching
Categories
Funding
- National Nature Science Foundation of China [62102436]
- National Key Laboratory of Science and Technology [6142217210503]
- Projects Foundation of University [202250E050, 202250E060]
- Hubei Province Natural Science Foundation [2021CFB279]
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This paper proposes a novel automatic matching method named LURF for multimodal images by extracting semantic road features, designing an intersection point detector, and a local entropy descriptor, and adopting a global optimization strategy for correct matching.
Automatic matching of multimodal remote sensing images remains a vital yet challenging task, particularly for remote sensing and computer vision applications. Most traditional methods mainly focus on key point detection and description of the original image, thus ignoring the deep semantic feature information such as semantic road features, with the result that the traditional method can not effectively resist nonlinear grayscale distortion, and has low matching efficiency and poor accuracy. Motivated by this, this paper proposes a novel automatic matching method named LURF via learned unstructured road features for the multimodal images. There are four main contributions in LURF. To begin with, the semantic road features were extracted from multimodal images based on segmentation model CRESIv2. Next, based on semantic road features, a stable and reliable intersection point detector has been proposed to detect unstructured key points. Moreover, a local entropy descriptor has been designed to describe key points with the local skeleton feature. Finally, a global optimization strategy is adopted to achieve the correct matching. The extensive experimental results demonstrate that the proposed LURF outperforms other state-of-the-art methods in terms of both accuracy and efficiency on different multimodal image data sets.
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