Author

Zhibo Guo

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Open access Aug 2026

HSAR-DETR: Hierarchical Spatial–Frequency Attention Network for UAV Small Object Detection

HSAR-DETR is proposed, a detection framework that jointly improves hierarchical feature representation, cross-scale refinement, and geometry-aware localization and experimental results on the VisDrone, RSOD, and TinyPerson datasets demonstrate improved detection performance.

Cheng Zhang, Zhibo Guo · Remote Sensing · 0 citations