Search Results for author: Jiuming Liu

Found 10 papers, 4 papers with code

NeuroGauss4D-PCI: 4D Neural Fields and Gaussian Deformation Fields for Point Cloud Interpolation

no code implementations23 May 2024 Chaokang Jiang, Dalong Du, Jiuming Liu, Siting Zhu, Zhenqiang Liu, Zhuang Ma, Zhujin Liang, Jie zhou

Point Cloud Interpolation confronts challenges from point sparsity, complex spatiotemporal dynamics, and the difficulty of deriving complete 3D point clouds from sparse temporal information.

Autonomous Driving

MAMBA4D: Efficient Long-Sequence Point Cloud Video Understanding with Disentangled Spatial-Temporal State Space Models

no code implementations23 May 2024 Jiuming Liu, Jinru Han, Lihao Liu, Angelica I. Aviles-Rivero, Chaokang Jiang, Zhe Liu, Hesheng Wang

Point cloud videos effectively capture real-world spatial geometries and temporal dynamics, which are essential for enabling intelligent agents to understand the dynamically changing 3D world we live in.

Action Recognition point cloud video understanding +3

SemGauss-SLAM: Dense Semantic Gaussian Splatting SLAM

no code implementations12 Mar 2024 Siting Zhu, Renjie Qin, Guangming Wang, Jiuming Liu, Hesheng Wang

We propose SemGauss-SLAM, a dense semantic SLAM system utilizing 3D Gaussian representation, that enables accurate 3D semantic mapping, robust camera tracking, and high-quality rendering simultaneously.

Semantic SLAM

Point Mamba: A Novel Point Cloud Backbone Based on State Space Model with Octree-Based Ordering Strategy

1 code implementation11 Mar 2024 Jiuming Liu, Ruiji Yu, Yian Wang, Yu Zheng, Tianchen Deng, Weicai Ye, Hesheng Wang

In this paper, we propose a novel SSM-based point cloud processing backbone, named Point Mamba, with a causality-aware ordering mechanism.

Semantic Segmentation

3DSFLabelling: Boosting 3D Scene Flow Estimation by Pseudo Auto-labelling

1 code implementation28 Feb 2024 Chaokang Jiang, Guangming Wang, Jiuming Liu, Hesheng Wang, Zhuang Ma, Zhenqiang Liu, Zhujin Liang, Yi Shan, Dalong Du

We present a novel approach from the perspective of auto-labelling, aiming to generate a large number of 3D scene flow pseudo labels for real-world LiDAR point clouds.

Autonomous Driving Data Augmentation +1

Spherical Frustum Sparse Convolution Network for LiDAR Point Cloud Semantic Segmentation

no code implementations29 Nov 2023 Yu Zheng, Guangming Wang, Jiuming Liu, Marc Pollefeys, Hesheng Wang

Through the hash-based representation, we propose the Spherical Frustum sparse Convolution (SFC) and Frustum Fast Point Sampling (F2PS) to convolve and sample the points stored in spherical frustums respectively.

Position Segmentation +1

DifFlow3D: Toward Robust Uncertainty-Aware Scene Flow Estimation with Diffusion Model

1 code implementation29 Nov 2023 Jiuming Liu, Guangming Wang, Weicai Ye, Chaokang Jiang, Jinru Han, Zhe Liu, Guofeng Zhang, Dalong Du, Hesheng Wang

Furthermore, we also develop an uncertainty estimation module within diffusion to evaluate the reliability of estimated scene flow.

Scene Flow Estimation

SC-NeRF: Self-Correcting Neural Radiance Field with Sparse Views

no code implementations10 Sep 2023 Liang Song, Guangming Wang, Jiuming Liu, Zhenyang Fu, Yanzi Miao, Hesheng

By combining these modules, our approach successfully tackles the challenges of outdoor scene generalization, producing high-quality rendering results.

Novel View Synthesis SSIM

RegFormer: An Efficient Projection-Aware Transformer Network for Large-Scale Point Cloud Registration

1 code implementation ICCV 2023 Jiuming Liu, Guangming Wang, Zhe Liu, Chaokang Jiang, Marc Pollefeys, Hesheng Wang

Specifically, a projection-aware hierarchical transformer is proposed to capture long-range dependencies and filter outliers by extracting point features globally.

Point Cloud Registration

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