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Focal and efficient IOU loss for accurate bounding box regression

文献类型:期刊论文

作者Zhang, Yi-Fan2,3,4; Ren, Weiqiang1; Zhang, Zhang2,3,4; Jia, Zhen3,4; Wang, Liang2,3,4; Tan, Tieniu2,3,4
刊名NEUROCOMPUTING
出版日期2022-09-28
卷号506页码:146-157
关键词Object detection Loss function design Hard sample mining
ISSN号0925-2312
DOI10.1016/j.neucom.2022.07.042
通讯作者Zhang, Zhang(zzhang@nlpr.ia.ac.cn)
英文摘要In object detection, bounding box regression (BBR) is a crucial step that determines the object localization performance. However, we find that most previous loss functions for BBR have two main drawbacks: (i) Both `n-norm and IOU-based loss functions are inefficient to depict the objective of BBR, which leads to slow convergence and inaccurate regression results. (ii) Most of the loss functions ignore the imbalance problem in BBR that the large number of anchor boxes which have small overlaps with the target boxes contribute most to the optimization of BBR. To mitigate the adverse effects caused thereby, we perform thorough studies to exploit the potential of BBR losses in this paper. Firstly, an Efficient Intersection over Union (EIOU) loss is proposed, which explicitly measures the discrepancies of three geometric factors in BBR, i.e., the overlap area, the central point and the side length. After that, we state the Effective Example Mining (EEM) problem and propose a regression version of focal loss to make the regression process focus on high-quality anchor boxes. Finally, the above two parts are combined to obtain a new loss function, namely Focal-EIOU loss. Extensive experiments on both synthetic and real datasets are performed. Notable superiorities on both the convergence speed and the localization accuracy can be achieved over other BBR losses. (c) 2022 Elsevier B.V. All rights reserved.
WOS研究方向Computer Science
语种英语
WOS记录号WOS:000914170300012
出版者ELSEVIER
源URL[http://ir.ia.ac.cn/handle/173211/51383]  
专题自动化研究所_智能感知与计算研究中心
通讯作者Zhang, Zhang
作者单位1.Horizon Robot, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci CASIA, Inst Automat, NLPR, Beijing, Peoples R China
4.Chinese Acad Sci CASIA, Inst Automat, CRIPAC, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yi-Fan,Ren, Weiqiang,Zhang, Zhang,et al. Focal and efficient IOU loss for accurate bounding box regression[J]. NEUROCOMPUTING,2022,506:146-157.
APA Zhang, Yi-Fan,Ren, Weiqiang,Zhang, Zhang,Jia, Zhen,Wang, Liang,&Tan, Tieniu.(2022).Focal and efficient IOU loss for accurate bounding box regression.NEUROCOMPUTING,506,146-157.
MLA Zhang, Yi-Fan,et al."Focal and efficient IOU loss for accurate bounding box regression".NEUROCOMPUTING 506(2022):146-157.

入库方式: OAI收割

来源:自动化研究所

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