Extended Feature Pyramid Network for Small Object Detection
| Autor: | Deng, Chunfang, Wang, Mengmeng, Liu, Liang, Liu, Yong |
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| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Small object detection remains an unsolved challenge because it is hard to extract information of small objects with only a few pixels. While scale-level corresponding detection in feature pyramid network alleviates this problem, we find feature coupling of various scales still impairs the performance of small objects. In this paper, we propose extended feature pyramid network (EFPN) with an extra high-resolution pyramid level specialized for small object detection. Specifically, we design a novel module, named feature texture transfer (FTT), which is used to super-resolve features and extract credible regional details simultaneously. Moreover, we design a foreground-background-balanced loss function to alleviate area imbalance of foreground and background. In our experiments, the proposed EFPN is efficient on both computation and memory, and yields state-of-the-art results on small traffic-sign dataset Tsinghua-Tencent 100K and small category of general object detection dataset MS COCO. Comment: With the agreement of all authors, we would like to withdraw the manuscript. For lack of some experiments, a part of important claims cannot stand solidly. We need to further carry out experiments, and reconsider the rationality of these claims |
| Databáze: | arXiv |
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