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• W3192804777 abstract "The triplet loss is widely used in learning the local descriptors for image matching. However, existing triplet loss-based methods, like HardNet and DSM, employ the point-to-point distance metric, which neglects the neighborhood information of descriptors. Considering the fact that local neighborhood structures of matching descriptors would be similar under the ideal condition, this paper aims to learn the neighborhood topology-consistent descriptors (TCDesc). To this end, we first propose the linear combination weight as the topology weight to depict the neighborhood topology for each descriptor, where the difference between the center descriptor and the linear combination of its neighbors is minimized. For the global comparison, we then define a global topology vector by using the local topology weights. Next, beyond the Euclidean distance, we define a topology distance with the topology vectors to indicate the topological difference between the matching descriptors. Furthermore, we propose an adaptive weighting strategy to jointly minimize the topology distance and Euclidean distance in triplet loss. Experimental results on four widely-used datasets, i.e., UBC PhotoTourism, HPatches, W1BS and Oxford, demonstrate that our method can effectively improve the performance of both HardNet and DSM." @default.
• W3192804777 created "2021-08-16" @default.
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• W3192804777 date "2022-05-01" @default.
• W3192804777 modified "2023-09-29" @default.
• W3192804777 title "TCDesc: Learning Topology Consistent Descriptors for Image Matching" @default.
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• W3192804777 doi "https://doi.org/10.1109/tcsvt.2021.3099846" @default.
• W3192804777 hasPublicationYear "2022" @default.
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