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arXiv 2303.07064cs.CVcs.AI
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一种广义多模态融合检测框架

A Generalized Multi-Modal Fusion Detection Framework

Tongji University(同济大学);Shanghai Research Institute for Intelligent Autonomous Systems(上海自主智能无人系统科学中心);Nanyang Technological University(南洋理工大学)

Leichao Cui, Xiuxian Li, Min Meng, Xiaoyu Mo

AI总结:

本文提出通用3D检测框架MMFusion,通过体素局部感知与多模态特征融合模块实现LiDAR与图像的精确融合,在KITTI基准上提升检测性能,尤其对骑行者和行人检测表现优异。

摘要:

LiDAR点云已成为自动驾驶中最常见的数据来源。然而,由于点云的稀疏性,在特定场景下无法实现准确可靠的检测。由于图像与点云的互补性,图像正受到越来越多的关注。尽管取得了一些成功,但现有的融合方法要么执行硬融合,要么没有以直接的方式进行融合。在本文中,我们提出了一个名为MMFusion的通用3D检测框架,使用多模态特征。该框架旨在实现LiDAR与图像之间的精确融合,以提高复杂场景中的3D检测性能。我们的框架由两个独立的流组成:LiDAR流和相机流,它们可以与任何单模态特征提取网络兼容。LiDAR流中的体素局部感知模块增强了局部特征表示,然后多模态特征融合模块选择性地组合来自不同流的特征输出,以实现更好的融合。大量实验表明,我们的框架不仅优于现有基准,还改善了它们的检测性能,尤其是在KITTI基准上检测骑行者和行人方面,具有很强的鲁棒性和泛化能力。希望我们的工作能激发更多关于自动驾驶任务中多模态融合的研究。

英文摘要:

LiDAR point clouds have become the most common data source in autonomous driving. However, due to the sparsity of point clouds, accurate and reliable detection cannot be achieved in specific scenarios. Because of their complementarity with point clouds, images are getting increasing attention. Although with some success, existing fusion methods either perform hard fusion or do not fuse in a direct manner. In this paper, we propose a generic 3D detection framework called MMFusion, using multi-modal features. The framework aims to achieve accurate fusion between LiDAR and images to improve 3D detection in complex scenes. Our framework consists of two separate streams: the LiDAR stream and the camera stream, which can be compatible with any single-modal feature extraction network. The Voxel Local Perception Module in the LiDAR stream enhances local feature representation, and then the Multi-modal Feature Fusion Module selectively combines feature output from different streams to achieve better fusion. Extensive experiments have shown that our framework not only outperforms existing benchmarks but also improves their detection, especially for detecting cyclists and pedestrians on KITTI benchmarks, with strong robustness and generalization capabilities. Hopefully, our work will stimulate more research into multi-modal fusion for autonomous driving tasks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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