Background Semantics Matter: Cross-Task Feature Exchange Network for Clustered Infrared Small Target Detection
This work addresses challenges in infrared imaging for applications like surveillance or remote sensing, but it is incremental as it builds on existing detection methods with a new dataset and feature exchange mechanism.
The paper tackles the problem of infrared small target detection by introducing a new task called clustered infrared small target detection and proposing BAFE-Net, a multi-task architecture that improves detection accuracy and reduces false alarms through background semantic segmentation.
Infrared small target detection presents significant challenges due to the limited intrinsic features of the target and the overwhelming presence of visually similar background distractors. We contend that background semantics are critical for distinguishing between objects that appear visually similar in this context. To address this challenge, we propose a task, clustered infrared small target detection, and introduce DenseSIRST, a benchmark dataset that provides per-pixel semantic annotations for background regions. This dataset facilitates the shift from sparse to dense target detection. This dataset facilitates the shift from sparse to dense target detection. Building on this resource, we propose the Background-Aware Feature Exchange Network (BAFE-Net), a multi-task architecture that jointly tackles target detection and background semantic segmentation. BAFE-Net incorporates a dynamic cross-task feature hard-exchange mechanism, enabling the effective exchange of target and background semantics between the two tasks. Comprehensive experiments demonstrate that BAFE-Net significantly enhances target detection accuracy while mitigating false alarms. The DenseSIRST dataset, along with the code and trained models, is publicly available at https://github.com/GrokCV/BAFE-Net.