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Linghao Chen

12 accepted papers

2024

Chain-of-Thought Predictive Control

ICML 2024poster

We study generalizable policy learning from demonstrations for complex low-level control (e.g., contact-rich object manipulations). We propose a novel hierarchical imitation learning method that utilizes sub-optimal demos. Firstly, we propose an observation space-agnostic approach that efficiently d…

2024

EasyHeC++: Fully Automatic Hand-Eye Calibration with Pretrained Image Models

IROS 2024poster

Hand-eye calibration plays a fundamental role in robotics by directly influencing the efficiency of critical operations such as manipulation and grasping. In this work, we present a novel framework, EasyHeC++, designed for fully automatic hand-eye calibration. In contrast to previous methods that ne…

Cited by 4SourcecodeScholar
2024

MeshFormer : High-Quality Mesh Generation with 3D-Guided Reconstruction Model

NeurIPS 2024oral

Open-world 3D reconstruction models have recently garnered significant attention. However, without sufficient 3D inductive bias, existing methods typically entail expensive training costs and struggle to extract high-quality 3D meshes. In this work, we introduce MeshFormer, a sparse-view reconstruct…

2024

One-2-3-45++: Fast Single Image to 3D Objects with Consistent Multi-View Generation and 3D Diffusion

CVPR 2024poster

Recent advancements in open-world 3D object generation have been remarkable with image-to-3D methods offering superior fine-grained control over their text-to-3D counterparts. However most existing models fall short in simultaneously providing rapid generation speeds and high fidelity to input image…

Cited by 199SourcePDFScholar
2024

SpaRP: Fast 3D Object Reconstruction and Pose Estimation from Sparse Views

ECCV 2024poster

"Open-world 3D generation has recently attracted considerable attention. While many single-image-to-3D methods have yielded visually appealing outcomes, they often lack sufficient controllability and tend to produce hallucinated regions that may not align with users’ expectations. In this paper, we…

2023

EasyHeC: Accurate and Automatic Hand-Eye Calibration Via Differentiable Rendering and Space Exploration

RA-L 2023

Hand-eye calibration is a critical task in robotics, as it directly affects the efficacy of critical operations such as manipulation and grasping. Traditional methods for achieving this objective necessitate the careful design of joint poses and the use of specialized calibration markers, while most

Cited by 26SourceScholar
2023

One-2-3-45: Any Single Image to 3D Mesh in 45 Seconds without Per-Shape Optimization

NeurIPS 2023poster

Single image 3D reconstruction is an important but challenging task that requires extensive knowledge of our natural world. Many existing methods solve this problem by optimizing a neural radiance field under the guidance of 2D diffusion models but suffer from lengthy optimization time, 3D inconsist…

2023

OpenIllumination: A Multi-Illumination Dataset for Inverse Rendering Evaluation on Real Objects

NeurIPS 2023poster

We introduce OpenIllumination, a real-world dataset containing over 108K images of 64 objects with diverse materials, captured under 72 camera views and a large number of different illuminations. For each image in the dataset, we provide accurate camera parameters, illumination ground truth, and for…

2021

NeuralRecon: Real-Time Coherent 3D Reconstruction From Monocular Video

CVPR 2021poster

We present a novel framework named NeuralRecon for real-time 3D scene reconstruction from a monocular video. Unlike previous methods that estimate single-view depth maps separately on each key-frame and fuse them later, we propose to directly reconstruct local surfaces represented as sparse TSDF vol…

Cited by 358PDFcodeScholar
2021

You Don't Only Look Once: Constructing Spatial-Temporal Memory for Integrated 3D Object Detection and Tracking

ICCV 2021poster

Humans are able to continuously detect and track surrounding objects by constructing a spatial-temporal memory of the objects when looking around. In contrast, 3D object detectors in existing tracking-by-detection systems often search for objects in every new video frame from scratch, without fully…

Cited by 13PDFcodeScholar
2020

Disp R-CNN: Stereo 3D Object Detection via Shape Prior Guided Instance Disparity Estimation

CVPR 2020poster

In this paper, we propose a novel system named Disp R-CNN for 3D object detection from stereo images. Many recent works solve this problem by first recovering a point cloud with disparity estimation and then apply a 3D detector. The disparity map is computed for the entire image, which is costly and…

Cited by 145PDFcodeScholar