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arXiv 2203.12976cs.CVcs.AI
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Focus-and-Detect:一种航空图像小目标检测框架

Focus-and-Detect: A Small Object Detection Framework for Aerial Images

İstanbul Technical University(伊斯坦布尔理工大学);Aselsan(阿瑟尔桑)

Onur Can Koyun, Reyhan Kevser Keser, İbrahim Batuhan Akkaya, Behçet Uğur Töreyin

摘要:

尽管近年来取得了一些进展,但航空图像中的目标检测仍然是一项具有挑战性的任务。航空图像中的特定问题使得检测问题变得更加困难,例如小物体,密集的物体,不同尺寸和不同方向的物体。为了解决小目标检测问题,我们提出了一个两阶段的目标检测框架称为“焦点和检测”。第一阶段由高斯混合模型监督的对象检测器网络组成,生成构成聚焦区域的对象集群。第二阶段也是一个物体检测器网络,预测聚焦区域内的物体。为了克服区域搜索方法的截断效应,提出了不完全盒抑制(IBS)方法。结果表明,所提出的两阶段框架在VisDrone验证数据集上获得了42.06的AP分数,超过了文献中报道的所有其他最先进的小目标检测方法。

英文摘要:

Despite recent advances, object detection in aerial images is still a challenging task. Specific problems in aerial images makes the detection problem harder, such as small objects, densely packed objects, objects in different sizes and with different orientations. To address small object detection problem, we propose a two-stage object detection framework called "Focus-and-Detect". The first stage which consists of an object detector network supervised by a Gaussian Mixture Model, generates clusters of objects constituting the focused regions. The second stage, which is also an object detector network, predicts objects within the focal regions. Incomplete Box Suppression (IBS) method is also proposed to overcome the truncation effect of region search approach. Results indicate that the proposed two-stage framework achieves an AP score of 42.06 on VisDrone validation dataset, surpassing all other state-of-the-art small object detection methods reported in the literature, to the best of authors' knowledge.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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