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Changjiang Cai

7 accepted papers

2025

ActiveGAMER: Active GAussian Mapping through Efficient Rendering

CVPR 2025poster

We introduce ActiveGAMER, an active mapping system that utilizes 3D Gaussian Splatting (3DGS) to achieve high-quality, real-time scene mapping and exploration. Unlike traditional NeRF-based methods, which are computationally demanding and restrict active mapping performance, our approach leverages t…

Cited by 2SourcePDFScholar
2025

PlanarNeRF: Online Learning of Planar Primitives with Neural Radiance Fields

ICRA 2025

Identifying spatially complete planar primitives from visual data is a crucial task in computer vision. Prior methods are largely restricted to either 2D segment recovery or simplifying 3D structures, even with extensive plane annotations. We present PlanarNeRF, a novel framework capable of detectin

Cited by 8SourceScholar
2024

NARUTO: Neural Active Reconstruction from Uncertain Target Observations

CVPR 2024poster

We present NARUTO a neural active reconstruction system that combines a hybrid neural representation with uncertainty learning enabling high-fidelity surface reconstruction. Our approach leverages a multi-resolution hash-grid as the mapping backbone chosen for its exceptional convergence speed and c…

2023

RIAV-MVS: Recurrent-Indexing an Asymmetric Volume for Multi-View Stereo

CVPR 2023poster

This paper presents a learning-based method for multi-view depth estimation from posed images. Our core idea is a "learning-to-optimize" paradigm that iteratively indexes a plane-sweeping cost volume and regresses the depth map via a convolutional Gated Recurrent Unit (GRU). Since the cost volume pl…

2022

PlaneMVS: 3D Plane Reconstruction From Multi-View Stereo

CVPR 2022poster

We present a novel framework named PlaneMVS for 3D plane reconstruction from multiple input views with known camera poses. Most previous learning-based plane reconstruction methods reconstruct 3D planes from single images, which highly rely on single-view regression and suffer from depth scale ambig…

Cited by 49PDFcodeScholar
2018

CBMV: A Coalesced Bidirectional Matching Volume for Disparity Estimation

CVPR 2018poster

Recently, there has been a paradigm shift in stereo matching with learning-based methods achieving the best results on all popular benchmarks. The success of these methods is due to the availability of training data with ground truth; training learning-based systems on these datasets has allowed the…

2016

An egocentric computer vision based co-robot wheelchair

IROS 2016poster

Motivated by the emerging needs to improve the quality of life for the elderly and disabled individuals who rely on wheelchairs for mobility, and who might have limited or no hand functionality at all, we propose an egocentric computer vision based co-robot wheelchair to enhance their mobility witho…

Cited by 19SourceScholar