Search Results for author: Jiarong Lin

Found 13 papers, 12 papers with code

Mesh-Learner: Texturing Mesh with Spherical Harmonics

1 code implementation28 Apr 2025 Yunfei Wan, Jianheng Liu, Jiarong Lin, Fu Zhang

Conversely, gradients from each pixel are back-propagated to the related SH Texels in SH textures.

3D Reconstruction

GS-SDF: LiDAR-Augmented Gaussian Splatting and Neural SDF for Geometrically Consistent Rendering and Reconstruction

1 code implementation13 Mar 2025 Jianheng Liu, Yunfei Wan, Bowen Wang, Chunran Zheng, Jiarong Lin, Fu Zhang

The accurate LiDAR point clouds enable a trained neural signed distance field to offer a manifold geometry field, This motivates us to offer an SDF-based Gaussian initialization for physically grounded primitive placement and a comprehensive geometric regularization for geometrically consistent rendering and reconstruction.

Autonomous Driving Surface Reconstruction

FAST-LIVO2: Fast, Direct LiDAR-Inertial-Visual Odometry

1 code implementation26 Aug 2024 Chunran Zheng, Wei Xu, Zuhao Zou, Tong Hua, Chongjian Yuan, Dongjiao He, Bingyang Zhou, Zheng Liu, Jiarong Lin, Fangcheng Zhu, Yunfan Ren, Rong Wang, Fanle Meng, Fu Zhang

The fusion of both visual and LiDAR measurements is based on a single unified voxel map where the LiDAR module constructs the geometric structure for registering new LiDAR scans and the visual module attaches image patches to the LiDAR points.

NeRF Visual Odometry

Visual Localization in 3D Maps: Comparing Point Cloud, Mesh, and NeRF Representations

no code implementations21 Aug 2024 Lintong Zhang, Yifu Tao, Jiarong Lin, Fu Zhang, Maurice Fallon

This paper presents and evaluates a global visual localization system capable of localizing a single camera image across various 3D map representations built using both visual and lidar sensing.

Image Retrieval NeRF +1

ImMesh: An Immediate LiDAR Localization and Meshing Framework

1 code implementation12 Jan 2023 Jiarong Lin, Chongjiang Yuan, Yixi Cai, Haotian Li, Yunfan Ren, Yuying Zou, Xiaoping Hong, Fu Zhang

This voxel-wise meshing operation is delicately designed for the purpose of efficiency; it first performs a dimension reduction by projecting 3D points to a 2D local plane contained in the voxel, and then executes the meshing operation with pull, commit and push steps for incremental reconstruction of triangle facets.

Dimensionality Reduction

STD: Stable Triangle Descriptor for 3D place recognition

1 code implementation26 Sep 2022 Chongjian Yuan, Jiarong Lin, Zuhao Zou, Xiaoping Hong, Fu Zhang

For a triangle, its shape is uniquely determined by the length of the sides or included angles.

3D Place Recognition

R$^3$LIVE++: A Robust, Real-time, Radiance reconstruction package with a tightly-coupled LiDAR-Inertial-Visual state Estimator

1 code implementation8 Sep 2022 Jiarong Lin, Fu Zhang

The LIO subsystem utilizes the measurements from a LiDAR for reconstructing the geometric structure (i. e., the positions of 3D points), while the VIO subsystem simultaneously recovers the radiance information of the geometric structure from the input images.

Self-Driving Cars Simultaneous Localization and Mapping

R3LIVE: A Robust, Real-time, RGB-colored, LiDAR-Inertial-Visual tightly-coupled state Estimation and mapping package

3 code implementations10 Sep 2021 Jiarong Lin, Fu Zhang

Moreover, to make R3LIVE more extensible, we develop a series of offline utilities for reconstructing and texturing meshes, which further minimizes the gap between R3LIVE and various of 3D applications such as simulators, video games and etc (see our demos video).

Sensor Fusion

R2LIVE: A Robust, Real-time, LiDAR-Inertial-Visual tightly-coupled state Estimator and mapping

1 code implementation24 Feb 2021 Jiarong Lin, Chunran Zheng, Wei Xu, Fu Zhang

Our proposed framework is composed of two parts: the filter-based odometry and factor graph optimization.

Robotics

A decentralized framework for simultaneous calibration, localization and mapping with multiple LiDARs

1 code implementation3 Jul 2020 Jiarong Lin, Xiyuan Liu, Fu Zhang

To improve the system robustness and performance in self-localization and mapping, we develop a decentralized framework for simultaneous calibration, localization and mapping with multiple LiDARs.

Robotics

A fast, complete, point cloud based loop closure for LiDAR odometry and mapping

2 code implementations25 Sep 2019 Jiarong Lin, Fu Zhang

This paper presents a loop closure method to correct the long-term drift in LiDAR odometry and mapping (LOAM).

Loam_livox: A fast, robust, high-precision LiDAR odometry and mapping package for LiDARs of small FoV

2 code implementations15 Sep 2019 Jiarong Lin, Fu Zhang

LiDAR odometry and mapping (LOAM) has been playing an important role in autonomous vehicles, due to its ability to simultaneously localize the robot's pose and build high-precision, high-resolution maps of the surrounding environment.

Autonomous Navigation

Flying through a narrow gap using neural network: an end-to-end planning and control approach

1 code implementation21 Mar 2019 Jiarong Lin, Luqi Wang, Fei Gao, Shaojie Shen, Fu Zhang

To this end, we propose an end-to-end policy network, which imitates from the traditional pipeline and is fine-tuned using reinforcement learning.

Robotics

Cannot find the paper you are looking for? You can Submit a new open access paper.