Relaxation oscillation patterns induced by amplitude-modulated excitation in the Duffing system

J Song, X Han, Y Zou, Y Jiang, Q Bi - Chaos, Solitons & Fractals, 2022 - Elsevier
Relaxation oscillations are typical fast–slow behaviors in the excited Duffing system. The
present paper focuses on the effects of amplitude-modulated excitation on relaxation …

Automatic Internal Stray Light Calibration of AMCW Coaxial Scanning LiDAR Using Black and White Image Patterns

SH Lee, YS Lim, WH Kwon… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this article, an automatic calibration method is proposed to reduce the depth error caused
by internal stray light in amplitude-modulated continuous wave (AMCW) coaxial scanning …

Multipath Interference Suppression of Amplitude-Modulated Continuous Wave Coaxial-Scanning LiDAR Using Model-based Synthetic Data Learning

SH Lee, YS Lim, WH Kwon, YH Park - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
This article proposes a novel model-based synthetic data learning approach to suppress the
multipath interference (MPI) in the amplitude-modulated continuous wave (AMCW) coaxial …

Distance measurement error compensation using machine learning for laser scanning AMCW time-of-flight sensor

SH Lee, WH Kwon, YS Lim… - MOEMS and Miniaturized …, 2022 - spiedigitallibrary.org
Amplitude-modulated continuous wave (AMCW) time-of-flight (ToF) sensor is widely used to
capture 3D information of objects due to its relatively high measurement precision in short …

Narrowband parallel coherent LiDAR with frequency interleaving

L Wang, L Hu, W Jiao, Y Shang, J Chen… - arXiv preprint arXiv …, 2024 - arxiv.org
The high demand for 3D imaging in intelligent robotics is motivating the advances of
coherent LiDARs towards high performances with low complexity/cost. However, the current …

Removal of systematic distance error due to correlated stray light in laser scanning-based AMCW time-of-flight sensor

WH Kwon, SH Lee, YS Lim… - MOEMS and Miniaturized …, 2022 - spiedigitallibrary.org
With the increasing demand for 3D depth information in various industrial applications, light
detection and ranging (LiDAR) has been emerged as one of the solutions to measure the …

A long-distance 3D face recognition architecture utilizing MEMS-based region-scanning LiDAR

YS Lim, SH Lee, SJ Cheong… - MOEMS and Miniaturized …, 2023 - spiedigitallibrary.org
In this paper, a novel 3D face recognition system utilizing the MEMS-based indirect Time-of-
Flight (ToF) region-scanning LiDAR is proposed for long-distance person identification …

Multipath Interference Suppression of Amplitude-Modulated Continuous Wave Scanning LiDAR Based on Bayesian-Optimized XGBoost Ensemble

S Lee, Y Lim, W Kwon, Y Park - arXiv preprint arXiv:2211.03381, 2022 - arxiv.org
This paper proposes a novel multipath interference (MPI) suppression algorithm based on
Bayesian-optimized extreme gradient boosting (XGBoost) ensemble to reduce MPI error in …

Automatic Internal Stray Light Calibration of AMCW Coaxial Scanning LiDAR Using GMM and PSO

SH Lee, WH Kwon, YS Lim, YH Park - arXiv preprint arXiv:2302.14467, 2023 - arxiv.org
In this paper, an automatic calibration algorithm is proposed to reduce the depth error
caused by internal stray light in amplitude-modulated continuous wave (AMCW) coaxial …

A long-distance 6D pose estimation system for space object recognition using region-scanning LiDAR

YS Lim, SJ An, SH Lee, YH Park - MOEMS and Miniaturized …, 2024 - spiedigitallibrary.org
In this paper, a novel 6-Dimensional (3 positions and 3 orientations) pose estimation system
using indirect Time-of-Flight (ToF) region-scanning LiDAR is proposed for long-distance …