TopoBDA: Towards Bezier Deformable Attention for Road Topology Understanding

• URL: http://arxiv.org/abs/2412.18951v1
• Date: Wed, 25 Dec 2024 17:31:54 GMT
• Title: TopoBDA: Towards Bezier Deformable Attention for Road Topology Understanding
• Authors: Muhammet Esat Kalfaoglu, Halil Ibrahim Ozturk, Ozsel Kilinc, Alptekin Temizel,
• Abstract summary: TopoBDA (Topology with Bezier Deformable Attention) is a novel approach that enhances road topology understanding. BDA utilizes Bezier control points to drive the deformable attention mechanism. TopoBDA processes multi-camera 360-degree imagery to generate Bird's Eye View (BEV) features, which are refined through a transformer decoder employing BDA.
• Score: 2.8498944632323755
• License:
• Abstract: Understanding road topology is crucial for autonomous driving. This paper introduces TopoBDA (Topology with Bezier Deformable Attention), a novel approach that enhances road topology understanding by leveraging Bezier Deformable Attention (BDA). BDA utilizes Bezier control points to drive the deformable attention mechanism, significantly improving the detection and representation of elongated and thin polyline structures, such as lane centerlines. TopoBDA processes multi-camera 360-degree imagery to generate Bird's Eye View (BEV) features, which are refined through a transformer decoder employing BDA. This method enhances computational efficiency while maintaining high accuracy in centerline prediction. Additionally, TopoBDA incorporates an instance mask formulation and an auxiliary one-to-many set prediction loss strategy to further refine centerline detection and improve road topology understanding. Experimental evaluations on the OpenLane-V2 dataset demonstrate that TopoBDA outperforms existing methods, achieving state-of-the-art results in centerline detection and topology reasoning. The integration of multi-modal data, including lidar and radar, specifically for road topology understanding, further enhances the model's performance, underscoring its importance in autonomous driving applications.

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