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Junlin Song

7 accepted papers

2026

Density-Aware Point Cloud Upsampling via Relational Graph Flow Matching

RA-L 2026

Real-world point clouds exhibit non-uniform density distributions, varying across distance and scale. Conventional upsampling methods typically treat points homogeneously, which over-smooths sparse regions while over-processing dense regions. We propose PURF, a density-aware point cloud upsampling f

Cited by 0SourceScholar
2025

Improving Monocular Visual-Inertial Initialization with Structureless Visual-Inertial Bundle Adjustment

ICRA 2025

Monocular visual inertial odometry (VIO) has facilitated a wide range of real-time motion tracking applications, thanks to the small size of the sensor suite and low power consumption. To successfully bootstrap VIO algorithms, the initialization module is extremely important. Most initialization met

Cited by 1SourceScholar
2025

Observability Investigation for Rotational Calibration of (Global-pose aided) VIO under Straight Line Motion

IROS 2025

Online extrinsic calibration is crucial for building "power-on-and-go" moving platforms, like robots and AR devices. However, blindly performing online calibration for unobservable parameter may lead to unpredictable results. In the literature, extensive studies have been conducted on the extrinsic

Cited by 0SourceScholar
2024

GPS-VIO Fusion with Online Rotational Calibration

ICRA 2024poster

Accurate global localization is crucial for autonomous navigation and planning. To this end, various GPS-aided Visual-Inertial Odometry (GPS-VIO) fusion algorithms are proposed in the literature. This paper presents a novel GPS-VIO system that is able to significantly benefit from the online calibra…

Cited by 2SourceScholar
2020

CCRobot-III: a Split-type Wire-driven Cable Climbing Robot for Cable-stayed Bridge Inspection

ICRA 2020poster

This paper presents a novel Cable Climbing Robot CCRobot-III, which is the third version designed for bridge cable inspection tasks, aiming at surpassing previous versions in terms of climbing speed and payload capacity. Benefiting from Split-type Wire-driven design, CCRobot-III can climb along a 90…

Cited by 31SourceScholar