Grid-distance-based selection for fine-grained object detection in aerial images

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Jiaqi Zhao, Qingfeng Ou, Yong Zhou, Wenliang Du, Rui Yao

Published: 2025, Last Modified: 01 Aug 2025Pattern Recognit. Lett. 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Point out the drawbacks of Intersection over Union as a metric for label assignment.•The grid-distance-based selection is proposed as a label assignment method.•The key regions within an object are modeled for fine-grained object detection tasks.