Qiguang Zhu

A lightweight frequency-domain enhanced framework for small object detection in remote sensing

Remote sensing small-object detection remains challenging: weak target details are attenuated by repeated downsampling, sparse object responses are difficult to separate from background clutter, and objects vary widely in scale and aspect ratio. We propose FD-YOLO, a compact detector with three complementary componen...

A non-linear granger causality-driven dynamic graph neural network for marine buoy data imputation