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Gunhee Koo

3 accepted papers

2024

Visual Localization in Repetitive and Symmetric Indoor Parking Lots using 3D Key Text Graph

ICRA 2024poster

Indoor parking lots are the GPS-denied spaces to which vision-based localization approaches have usually been applied to solve localization problems. However, due to the repetitiveness and symmetry of the spaces, visual localization methods commonly confront difficulties in estimating precise 3D pos…

Cited by 2SourceScholar
2021

A Two-Step Optimization for Extrinsic Calibration of Multiple Camera System (MCS) Using Depth-Weighted Normalized Points

RA-L 2021

A multiple camera system (MCS), which allows only a limited common field-of-view between adjacent cameras, has been chiefly calibrated using a typical 2D-3D point correspondence. However, the correspondence contains a potential instability by which the calibration result can diverge, and the instabi

Cited by 4SourceScholar
2020

Analytic Plane Covariances Construction for Precise Planarity-based Extrinsic Calibration of Camera and LiDAR

ICRA 2020poster

Planarity of checkerboards is a widely used feature for extrinsic calibration of camera and LiDAR. In this study, we propose two analytically derived covariances of (i) plane parameters and (ii) plane measurement, for precise extrinsic calibration of camera and LiDAR. These covariances allow the gra…

Cited by 23SourceScholar