Woolim Hong

Works (4)

Updated: April 5th, 2024 17:09

2023 journal article

A Feasibility Study of Piecewise Phase Variable Based on Variable Toe-Off for the Powered Prosthesis Control: A Case Study

IEEE ROBOTICS AND AUTOMATION LETTERS, 8(5), 2590–2597.

By: W. Hong n, N. Kumar *, S. Patrick *, S. Moon* & P. Hur *

author keywords: Legged locomotion; Prosthetics; Thigh; Kinematics; Force sensors; Estimation; Trajectory; Wearable robotics; rehabilitation robotics; prosthetics and exoskeletons; phase variable
TL;DR: A piecewise phase variable is proposed that accounts for different toe-off timings while estimating the user's gait phase at various speeds and will be able to provide more appropriate and timely assistance to individuals at variable walking speeds. (via Semantic Scholar)
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Source: Web Of Science
Added: April 24, 2023

2023 article

Towards Personalized Control for Powered Knee Prostheses: Continuous Impedance Functions and PCA-Based Tuning Method

2023 INTERNATIONAL CONFERENCE ON REHABILITATION ROBOTICS, ICORR.

By: W. Hong n & H. Huang n 

TL;DR: A novel approach for tuning knee prostheses using continuous impedance functions (CIFs) and Principal Component Analysis (PCA), which generates CIFs via convex optimization and extracts principal components (PCs) that capture common features. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: January 2, 2024

2023 article

Towards Realistic Prosthetic Gait Simulations: Enhancing the Accuracy of OpenSim Analysis by Integrating the Transfemoral Prosthesis Model

2023 32ND IEEE INTERNATIONAL CONFERENCE ON ROBOT AND HUMAN INTERACTIVE COMMUNICATION, RO-MAN, pp. 600–606.

By: H. Ryu*, W. Hong n & P. Hur *

TL;DR: The model with prosthesis characteristics demonstrated a closer match to the actuator data, particularly during the stance phase, suggesting that it better reflects the dynamic features of a real powered prosthesis, but discrepancies were observed during the swing phase, highlighting the need for further refinements. (via Semantic Scholar)
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Source: Web Of Science
Added: January 8, 2024

2022 journal article

Piecewise Linear Labeling Method for Speed-Adaptability Enhancement in Human Gait Phase Estimation

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 31, 628–635.

By: W. Hong n, J. Lee  n & P. Hur  n

author keywords: Legged locomotion; Labeling; Training; Phase estimation; Thigh; Data models; Exoskeletons; Gait phase estimation; machine learning; labeling method; exoskeleton and prosthesis
TL;DR: A new labeling method is proposed to have the estimator learn the ground truth based on variable toe-off onset at different walking speeds to improve speed-adaptability in gait phase estimation, resulting in outstanding accuracy for both gaitphase, heel-strike, and toe-offs estimation. (via Semantic Scholar)
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Source: Web Of Science
Added: May 1, 2023

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