Search Results for author: Chenglu Wen

Found 25 papers, 13 papers with code

HiSC4D: Human-centered interaction and 4D Scene Capture in Large-scale Space Using Wearable IMUs and LiDAR

no code implementations6 Sep 2024 Yudi Dai, Zhiyong Wang, Xiping Lin, Chenglu Wen, Lan Xu, Siqi Shen, Yuexin Ma, Cheng Wang

To promote research of egocentric human interaction in large scenes and facilitate downstream tasks, we also present a dataset, containing 8 sequences in 4 large scenes (200 to 5, 000 $m^2$), providing 36k frames of accurate 4D human motions with SMPL annotations and dynamic scenes, 31k frames of cropped human point clouds, and scene mesh of the environment.

OC3D: Weakly Supervised Outdoor 3D Object Detection with Only Coarse Click Annotation

no code implementations15 Aug 2024 Qiming Xia, Hongwei Lin, Wei Ye, Hai Wu, Yadan Luo, Shijia Zhao, Xin Li, Chenglu Wen

Experimental results on the widely used KITTI and nuScenes datasets demonstrate that our OC3D with only coarse clicks achieves state-of-the-art performance compared to weakly-supervised 3D detection methods.

3D Object Detection object-detection +1

L4DR: LiDAR-4DRadar Fusion for Weather-Robust 3D Object Detection

no code implementations7 Aug 2024 Xun Huang, Ziyu Xu, Hai Wu, Jinlong Wang, Qiming Xia, Yan Xia, Jonathan Li, Kyle Gao, Chenglu Wen, Cheng Wang

However, the fusion of LiDAR and 4D radar is challenging because they differ significantly in terms of data quality and the degree of degradation in adverse weather.

Autonomous Navigation Denoising +3

Commonsense Prototype for Outdoor Unsupervised 3D Object Detection

1 code implementation CVPR 2024 Hai Wu, Shijia Zhao, Xun Huang, Chenglu Wen, Xin Li, Cheng Wang

The prevalent approaches of unsupervised 3D object detection follow cluster-based pseudo-label generation and iterative self-training processes.

3D Object Detection Object +3

FedPFT: Federated Proxy Fine-Tuning of Foundation Models

1 code implementation17 Apr 2024 Zhaopeng Peng, Xiaoliang Fan, Yufan Chen, Zheng Wang, Shirui Pan, Chenglu Wen, Ruisheng Zhang, Cheng Wang

Adapting Foundation Models (FMs) for downstream tasks through Federated Learning (FL) emerges a promising strategy for protecting data privacy and valuable FMs.

Federated Learning

RELI11D: A Comprehensive Multimodal Human Motion Dataset and Method

no code implementations CVPR 2024 Ming Yan, Yan Zhang, Shuqiang Cai, Shuqi Fan, Xincheng Lin, Yudi Dai, Siqi Shen, Chenglu Wen, Lan Xu, Yuexin Ma, Cheng Wang

Comprehensive capturing of human motions requires both accurate captures of complex poses and precise localization of the human within scenes.

Sunshine to Rainstorm: Cross-Weather Knowledge Distillation for Robust 3D Object Detection

1 code implementation28 Feb 2024 Xun Huang, Hai Wu, Xin Li, Xiaoliang Fan, Chenglu Wen, Cheng Wang

LiDAR-based 3D object detection models have traditionally struggled under rainy conditions due to the degraded and noisy scanning signals.

Knowledge Distillation object-detection +1

LiSA: LiDAR Localization with Semantic Awareness

1 code implementation CVPR 2024 Bochun Yang, Zijun Li, Wen Li, Zhipeng Cai, Chenglu Wen, Yu Zang, Matthias Muller, Cheng Wang

In SCR a scene is represented as a neural network which outputs the world coordinates for each point in the input point cloud.

Knowledge Distillation Semantic Segmentation

HINTED: Hard Instance Enhanced Detector with Mixed-Density Feature Fusion for Sparsely-Supervised 3D Object Detection

1 code implementation CVPR 2024 Qiming Xia, Wei Ye, Hai Wu, Shijia Zhao, Leyuan Xing, Xun Huang, Jinhao Deng, Xin Li, Chenglu Wen, Cheng Wang

Compared with leading sparsely-supervised methods HINTED significantly improves the detection performance on hard instances notably outperforming fully-supervised methods in detecting challenging categories like cyclists.

3D Object Detection object-detection

DiffLoc: Diffusion Model for Outdoor LiDAR Localization

1 code implementation CVPR 2024 Wen Li, Yuyang Yang, Shangshu Yu, Guosheng Hu, Chenglu Wen, Ming Cheng, Cheng Wang

We recognize APR's lack of robust features learning and iterative denoising process leads to suboptimal results.

Denoising

SPEAL: Skeletal Prior Embedded Attention Learning for Cross-Source Point Cloud Registration

no code implementations14 Dec 2023 Kezheng Xiong, Maoji Zheng, Qingshan Xu, Chenglu Wen, Siqi Shen, Cheng Wang

To the best of our knowledge, our approach is the first to facilitate point cloud registration with skeletal geometric priors.

Benchmarking Point Cloud Registration

CIMI4D: A Large Multimodal Climbing Motion Dataset under Human-scene Interactions

no code implementations CVPR 2023 Ming Yan, Xin Wang, Yudi Dai, Siqi Shen, Chenglu Wen, Lan Xu, Yuexin Ma, Cheng Wang

The core of this dataset is a blending optimization process, which corrects for the pose as it drifts and is affected by the magnetic conditions.

Pose Prediction

SLOPER4D: A Scene-Aware Dataset for Global 4D Human Pose Estimation in Urban Environments

1 code implementation CVPR 2023 Yudi Dai, Yitai Lin, Xiping Lin, Chenglu Wen, Lan Xu, Hongwei Yi, Siqi Shen, Yuexin Ma, Cheng Wang

We present SLOPER4D, a novel scene-aware dataset collected in large urban environments to facilitate the research of global human pose estimation (GHPE) with human-scene interaction in the wild.

3D Human Pose Estimation Camera Calibration +1

SGLoc: Scene Geometry Encoding for Outdoor LiDAR Localization

1 code implementation CVPR 2023 Wen Li, Shangshu Yu, Cheng Wang, Guosheng Hu, Siqi Shen, Chenglu Wen

In this work, we propose a novel LiDAR localization framework, SGLoc, which decouples the pose estimation to point cloud correspondence regression and pose estimation via this correspondence.

Outdoor Localization Pose Estimation +1

CoIn: Contrastive Instance Feature Mining for Outdoor 3D Object Detection with Very Limited Annotations

1 code implementation ICCV 2023 Qiming Xia, Jinhao Deng, Chenglu Wen, Hai Wu, Shaoshuai Shi, Xin Li, Cheng Wang

Combining CoIn with an iterative training strategy, we propose a CoIn++ pipeline, which requires only 2% annotations in the KITTI dataset to achieve performance comparable to the fully supervised methods.

3D Object Detection Contrastive Learning +2

Transformation-Equivariant 3D Object Detection for Autonomous Driving

no code implementations22 Nov 2022 Hai Wu, Chenglu Wen, Wei Li, Xin Li, Ruigang Yang, Cheng Wang

However, it is difficult to apply such networks to 3D object detection in autonomous driving due to its large computation cost and slow reasoning speed.

3D Object Detection Autonomous Driving +3

HSC4D: Human-centered 4D Scene Capture in Large-scale Indoor-outdoor Space Using Wearable IMUs and LiDAR

1 code implementation CVPR 2022 Yudi Dai, Yitai Lin, Chenglu Wen, Siqi Shen, Lan Xu, Jingyi Yu, Yuexin Ma, Cheng Wang

We propose Human-centered 4D Scene Capture (HSC4D) to accurately and efficiently create a dynamic digital world, containing large-scale indoor-outdoor scenes, diverse human motions, and rich interactions between humans and environments.

3D Human Pose Estimation Autonomous Driving

Point2Node: Correlation Learning of Dynamic-Node for Point Cloud Feature Modeling

no code implementations23 Dec 2019 Wenkai Han, Chenglu Wen, Cheng Wang, Xin Li, Qing Li

Point2Node can dynamically explore correlation among all graph nodes from different levels, and adaptively aggregate the learned features.

RF-Net: An End-to-End Image Matching Network based on Receptive Field

1 code implementation CVPR 2019 Xuelun Shen, Cheng Wang, Xin Li, Zenglei Yu, Jonathan Li, Chenglu Wen, Ming Cheng, Zijian He

This paper proposes a new end-to-end trainable matching network based on receptive field, RF-Net, to compute sparse correspondence between images.

Keypoint Detection

Traffic Sign Timely Visual Recognizability Evaluation Based on 3D Measurable Point Clouds

no code implementations10 Oct 2017 Shanxin Zhang, Cheng Wang, Zhuang Yang, Chenglu Wen, Jonathan Li, Chenhui Yang

Then, based on the VEM, we proposed the concept of the Visual Recognizability Field (VRF) to reflect the visual recognizability distribution in 3D space and established a Visual Recognizability Evaluation Model (VREM) to measure a traffic sign visual recognizability for a given viewpoint.

Point Cloud Segmentation

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