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• W4285098584 abstract "Few-shot object detection (FSOD), which aims to teach machines to detect objects belonging to novel classes via extremely few annotated data, has attracted extensive research interest. However, the performance of FSOD is still limited by the lack of data. Visual information of novel objects has significant intraclass variance under the few-shot setting, so single visual information cannot accurately represent the objects themselves. In contrast, humans are good at combining visual and semantic systems to recognize new concepts simultaneously. In this paper, we fully explore utilizing additional semantic knowledge to assist the FSOD task. Concretely, we first obtain the semantic representation of classes by the word embedding model learned from a large corpus of text. We then design a semantic enhancement (SE) module to enhance the incomprehensively visual representation of novel classes. To further improve the classification performance, we define a semantic prototype contrastive (SPC) loss to learn a more discriminative embedding space, where features to be detected belonging to the same class are compactly clustered around the corresponding semantic representation. Furthermore, we also introduce the semantic margin between different semantic representations for SPC loss to adaptively separate the margin between features belonging to different classes. Extensive experiments on the PASCAL VOC and MS-COCO benchmarks demonstrate that the proposed method achieves state-of-the-art performance." @default.
• W4285098584 created "2022-07-14" @default.
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• W4285098584 date "2022-09-01" @default.
• W4285098584 modified "2023-09-26" @default.
• W4285098584 title "Few-shot object detection with semantic enhancement and semantic prototype contrastive learning" @default.
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• W4285098584 doi "https://doi.org/10.1016/j.knosys.2022.109411" @default.
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