WS-DETR: Robust Water Surface Object Detection through Vision-Radar Fusion with Detection Transformer

• URL: http://arxiv.org/abs/2504.07441v1
• Date: Thu, 10 Apr 2025 04:16:46 GMT
• Title: WS-DETR: Robust Water Surface Object Detection through Vision-Radar Fusion with Detection Transformer
• Authors: Huilin Yin, Pengyu Wang, Senmao Li, Jun Yan, Daniel Watzenig,
• Abstract summary: Water surface object detection faces challenges from blurred edges and diverse object scales.<n>Existing approaches suffer from cross-modal feature conflicts, which negatively affect model robustness.<n>We propose a robust vision-radar fusion model WS-DETR, which achieves state-of-the-art (SOTA) performance.
• Score: 4.768265044725289
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Robust object detection for Unmanned Surface Vehicles (USVs) in complex water environments is essential for reliable navigation and operation. Specifically, water surface object detection faces challenges from blurred edges and diverse object scales. Although vision-radar fusion offers a feasible solution, existing approaches suffer from cross-modal feature conflicts, which negatively affect model robustness. To address this problem, we propose a robust vision-radar fusion model WS-DETR. In particular, we first introduce a Multi-Scale Edge Information Integration (MSEII) module to enhance edge perception and a Hierarchical Feature Aggregator (HiFA) to boost multi-scale object detection in the encoder. Then, we adopt self-moving point representations for continuous convolution and residual connection to efficiently extract irregular features under the scenarios of irregular point cloud data. To further mitigate cross-modal conflicts, an Adaptive Feature Interactive Fusion (AFIF) module is introduced to integrate visual and radar features through geometric alignment and semantic fusion. Extensive experiments on the WaterScenes dataset demonstrate that WS-DETR achieves state-of-the-art (SOTA) performance, maintaining its superiority even under adverse weather and lighting conditions.

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