FastBEVFusion:50FPSで動作する3D物体検出向け簡易マルチモーダル融合
FastBEVFusion: Simple Multi-Modal Fusion for 3D Object Detection at 50 FPS
LiDARとカメラの特徴を深度推定なしで半整合BEV空間に投影し、軽量なクロスアテンション融合で高精度かつ50FPS超のリアルタイム3D物体検出を実現した。
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著者: Tom Sanitz, Emre Gülsoylu, Simone Frintrop, Christian Wilms
分類: cs.CV, cs.RO
原文アブストラクト
Reliable real-time 3D object detection based on LiDAR and camera data is critical for safety in autonomous driving, where systems must accurately perceive their surroundings with minimal latency. Many state-of-the-art systems achieve high-quality detection results but fail to meet real-time constraints, limiting their practical use. To address this challenge, we propose FastBEVFusion, a simple, fast, and robust fusion system for 3D object detection. Based on modality-specific features, FastBEVFusion projects these features into semi-aligned modality-specific BEV spaces, without relying on a computationally intensive and potentially error-prone depth estimation. Given these BEV spaces, we propose a light-weight, soft, and dynamic fusion module based on cross-attention, which adapts dynamically to the scene context and enables feature fusion across the entire BEV spaces. Experiments on the complex nuScenes dataset show that FastBEVFusion outperforms state-of-the-art real-time systems, and achieves over 50 FPS without deployment libraries. Additionally, our system shows strong robustness to calibration errors, making FastBEVFusion a powerful 3D object detection system for real-world applications.
関連論文
- カメラとLiDARのマルチモーダルストリーミング3D物体検出マルチモーダル3D検出