提出新模型提升遥感图像中目标方向检测精度。
FGAA-FPN: Foreground-Guided Angle-Aware Feature Pyramid Network for Oriented Object Detection
- 分层设计,低层用前景引导增强目标,高层用角度感知注意力建模方向关系。
- 在DOTA数据集上达到75.5%和68.3%的mAP,领先现有方法。
- 适合遥感影像中的航拍目标、船舶、灾害物体等方向敏感场景。
随着高分辨率遥感与航空影像日益普及,定向目标检测成为地理信息更新、海上监视和灾后响应的关键能力。然而,由于背景杂乱、尺度变化剧烈及方向差异大,检测仍具挑战。现有方法多依赖特征金字塔网络进行多尺度融合或用注意力机制建模上下文,但普遍缺乏显式前景建模与几何方向先验,限制了特征判别力。为此,本文提出FGAA-FPN:一种面向定向目标检测的前景引导角度感知特征金字塔网络。该网络基于层级功能分解,分别强化不同层级的空间分辨率与语义抽象。具体而言,前景引导特征调制模块在弱监督下学习前景显著性,增强低层特征中的目标区域并抑制背景干扰;同时,角度感知多头注意力模块编码相对方向关系,指导高层语义特征间的全局交互。在DOTA v1.0和DOTA v1.5上的大量实验表明,FGAA-FPN实现最先进性能,分别达到75.5%和68.3%的mAP。
原文摘要 · Abstract (English)
With the increasing availability of high-resolution remote sensing and aerial imagery, oriented object detection has become a key capability for geographic information updating, maritime surveillance, and disaster response. However, it remains challenging due to cluttered backgrounds, severe scale variation, and large orientation changes. Existing approaches largely improve performance through multi-scale feature fusion with feature pyramid networks or contextual modeling with attention, but they often lack explicit foreground modeling and do not leverage geometric orientation priors, which limits feature discriminability. To overcome these limitations, we propose FGAA-FPN, a Foreground-Guided Angle-Aware Feature Pyramid Network for oriented object detection. FGAA-FPN is built on a hierarchical functional decomposition that accounts for the distinct spatial resolution and semantic abstraction across pyramid levels, thereby strengthening multi-scale representations. Concretely, a Foreground-Guided Feature Modulation module learns foreground saliency under weak supervision to enhance object regions and suppress background interference in low-level features. In parallel, an Angle-Aware Multi-Head Attention module encodes relative orientation relationships to guide global interactions among high-level semantic features. Extensive experiments on DOTA v1.0 and DOTA v1.5 demonstrate that FGAA-FPN achieves state-of-the-art results, reaching 75.5% and 68.3% mAP, respectively.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。