MM-Gaussian: 3D Gaussian-based Multi-modal Fusion for Localization and Reconstruction in Unbounded Scenes

Fuente: arXiv
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Autori principali: Wu, Chenyang, Duan, Yifan, Zhang, Xinran, Sheng, Yu, Ji, Jianmin, Zhang, Yanyong
Natura: Preprint
Pubblicazione: 2024
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author Wu, Chenyang
Duan, Yifan
Zhang, Xinran
Sheng, Yu
Ji, Jianmin
Zhang, Yanyong
author_facet Wu, Chenyang
Duan, Yifan
Zhang, Xinran
Sheng, Yu
Ji, Jianmin
Zhang, Yanyong
contents Localization and mapping are critical tasks for various applications such as autonomous vehicles and robotics. The challenges posed by outdoor environments present particular complexities due to their unbounded characteristics. In this work, we present MM-Gaussian, a LiDAR-camera multi-modal fusion system for localization and mapping in unbounded scenes. Our approach is inspired by the recently developed 3D Gaussians, which demonstrate remarkable capabilities in achieving high rendering quality and fast rendering speed. Specifically, our system fully utilizes the geometric structure information provided by solid-state LiDAR to address the problem of inaccurate depth encountered when relying solely on visual solutions in unbounded, outdoor scenarios. Additionally, we utilize 3D Gaussian point clouds, with the assistance of pixel-level gradient descent, to fully exploit the color information in photos, thereby achieving realistic rendering effects. To further bolster the robustness of our system, we designed a relocalization module, which assists in returning to the correct trajectory in the event of a localization failure. Experiments conducted in multiple scenarios demonstrate the effectiveness of our method.
format Preprint
id arxiv_https___arxiv_org_abs_2404_04026
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle MM-Gaussian: 3D Gaussian-based Multi-modal Fusion for Localization and Reconstruction in Unbounded Scenes
Wu, Chenyang
Duan, Yifan
Zhang, Xinran
Sheng, Yu
Ji, Jianmin
Zhang, Yanyong
Robotics
Computer Vision and Pattern Recognition
Localization and mapping are critical tasks for various applications such as autonomous vehicles and robotics. The challenges posed by outdoor environments present particular complexities due to their unbounded characteristics. In this work, we present MM-Gaussian, a LiDAR-camera multi-modal fusion system for localization and mapping in unbounded scenes. Our approach is inspired by the recently developed 3D Gaussians, which demonstrate remarkable capabilities in achieving high rendering quality and fast rendering speed. Specifically, our system fully utilizes the geometric structure information provided by solid-state LiDAR to address the problem of inaccurate depth encountered when relying solely on visual solutions in unbounded, outdoor scenarios. Additionally, we utilize 3D Gaussian point clouds, with the assistance of pixel-level gradient descent, to fully exploit the color information in photos, thereby achieving realistic rendering effects. To further bolster the robustness of our system, we designed a relocalization module, which assists in returning to the correct trajectory in the event of a localization failure. Experiments conducted in multiple scenarios demonstrate the effectiveness of our method.
title MM-Gaussian: 3D Gaussian-based Multi-modal Fusion for Localization and Reconstruction in Unbounded Scenes
topic Robotics
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2404.04026