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• W3134480451 abstract "Few-shot object detection (FSOD) aims to strengthen the performance of novel object detection with few labeled samples. To alleviate the constraint of few samples, enhancing the generalization ability of learned features for novel objects plays a key role. Thus, the feature learning process of FSOD should focus more on intrinsical object characteristics, which are invariant under different visual changes and therefore are helpful for feature generalization. Unlike previous attempts of the meta-learning paradigm, in this paper, we explore how to smooth object features with intrinsical characteristics that are universal across different object categories. We propose a new prototype, namely universal prototype, that is learned from all object categories. Besides the advantage of characterizing invariant characteristics, the universal prototypes alleviate the impact of unbalanced object categories. After augmenting object features with the universal prototypes, we impose a consistency loss to maximize the agreement between the augmented features and the original one, which is beneficial for learning invariant object characteristics. Thus, we develop a new framework of few-shot object detection with universal prototypes (${FSOD}^{up}$) that owns the merit of feature generalization towards novel objects. Experimental results on PASCAL VOC and MS COCO demonstrate the effectiveness of ${FSOD}^{up}$. Particularly, for the 1-shot case of VOC Split2, ${FSOD}^{up}$ outperforms the baseline by 6.8% in terms of mAP. Moreover, we further verify ${FSOD}^{up}$ on a long-tail detection dataset, i.e., LVIS. And employing ${FSOD}^{up}$ outperforms the state-of-the-art method." @default.
• W3134480451 created "2021-03-15" @default.
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• W3134480451 date "2021-03-01" @default.
• W3134480451 modified "2023-09-27" @default.
• W3134480451 title "Universal-Prototype Augmentation for Few-Shot Object Detection." @default.
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