arxivcs.CV2026-07-06
FSDC-DETR: A Frequency-Spatial Domain Collaborative DETR for Small Object Detection
Aiwen Liu, Chengguang Zhu, Gang Wang, Dandan Zhu, Haodong Lin, Yan Wang, et al.
Small object detection (SOD) remains a challenging task in real-world applications. Despite recent advances, existing detectors remain limited by rigid processing that entangle spatial aggregation with implicit frequency aliasing and truncation, leading to inadequate preservation…