arXiv Computer Vision

UFO-DETR: Frequency-Guided End-to-End Detector for UAV Tiny Objects

UFO-DETR is an end‑to‑end object detection framework designed for UAV imagery, addressing challenges such as scale variation, dense distribution, and the prevalence of tiny targets. It employs an LSKNet backbone to optimize receptive fields and reduce parameters, integrates DAttention and AIFI modules for flexible multi‑scale spatial modeling, and introduces a DynFreq‑C3 module that enhances small target detection via cross‑space frequency feature enhancement. Experiments demonstrate that UFO‑DETR outperforms RT‑DETR‑L in detection accuracy while improving computational efficiency, making it suitable for UAV edge computing.

arXiv Computer Vision
5d ago

CLSC DETR: Reliable Candidate Ranking via Cross Layer Geometric Support for UAV Small Object Detection

CLSC DETR introduces a Cross Layer Local Support module that links final layer queries with intermediate layer candidates to gather complementary geometric evidence, improving localization quality estimation for small UAV objects. A Classification and Localization Consistency Calibration module then adjusts classification scores based on this quality and reliability, enhancing candidate ranking. The method yields a 1.5% AP and 2.0% AP$_{75}$ boost on VisDrone and consistent gains on UAVDT.

By Junyan Lin
arXiv AI
Jun 24

From Spatial to Spectral: An Efficient, Frequency-Guided Feature Representation Learner for Small Object Detection

arXiv:2606. 23825v1 Announce Type: cross Abstract: Efficient small object detection is bottlenecked by the inherent feature scarcity of tiny targets, which is further aggravated by operations of spatial-domain detectors that indiscriminately discard critical high-frequency details.

By Yuhan Rui, Shihan Qiao, Yibin Lou, Mingxi Yu, Yutong Wan, Yanqiao Chen, Dongsheng Hou, Zhen Cao, Athena Zhuoming Zhong, Qi Hao
Hugging Face Trending Papers
Jul 27

LCMamNet: A Lightweight Cross-scale Mamba Network for Infrared Small Target Detection

Infrared small target detection (IRSTD) is important for low-altitude perception, unmanned-system warning, and security monitoring. However, weak targets in infrared imagery usually occupy only a few pixels and are easily submerged by cloud clutter, ground edges, and bright noise, making it difficult for lightweight segmentation-based methods to preserve local target structures while suppressing background interference.

arXiv AI
Jun 16

Multi-Sensor Fusion for UAV Classification Based on Feature Maps of Image and Radar Data

arXiv:2410. 16089v2 Announce Type: replace Abstract: The unique cost, flexibility, speed, and efficiency of modern UAVs make them an attractive choice in many applications in contemporary society.

By Nikos Sakellariou (Centre for Research and Technology Hellas, Information Technologies Institute), Antonios Lalas (Centre for Research and Technology Hellas, Information Technologies Institute), Konstantinos Votis (Centre for Research and Technology Hellas, Information Technologies Institute), Dimitrios Tzovaras (Centre for Research and Technology Hellas, Information Technologies Institute)