Papers › Towards Dense and Accurate Radar Perception Via Efficient Cross-Modal Diffusion Model

Towards Dense and Accurate Radar Perception Via Efficient Cross-Modal Diffusion Model

13 Mar 2024arXiv:2403.08460archive 2025-07-28

Ruibin Zhang, Donglai Xue, YuHan Wang, Ruixu Geng, Fei Gao

Millimeter wave (mmWave) radars have attracted significant attention from both academia and industry due to their capability to operate in extreme weather conditions. However, they face challenges in terms of sparsity and noise interference, which hinder their application in the field of micro aerial vehicle (MAV) autonomous navigation. To this end, this paper proposes a novel approach to dense and accurate mmWave radar point cloud construction via cross-modal learning. Specifically, we introduce diffusion models, which possess state-of-the-art performance in generative modeling, to predict LiDAR-like point clouds from paired raw radar data. We also incorporate the most recent diffusion model inference accelerating techniques to ensure that the proposed method can be implemented on MAVs with limited computing resources.We validate the proposed method through extensive benchmark comparisons and real-world experiments, demonstrating its superior performance and generalization ability. Code and pretrained models will be available at https://github.com/ZJU-FAST-Lab/Radar-Diffusion.

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Autonomous Navigation

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Diffusion

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