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HelpMeWalk - A new digital process for orthoses production: Data processing, Workflow and Accuracy

Year: 2026

Type: article

Abstract: The HelpMeWalk project introduces a low-cost, magnetic field–based 3D acquisition system using sensor- embedded textile bandages for digital modeling of lower leg orthoses. The system captures approximately 300–500 spatial points within six seconds, providing data for a model-based surface reconstruction. A multi-step workflow – comprising error cleaning, alignment of measured points to a model surface and form adjustment – enables accurate reconstruction of individual limb geometries. Prototype evaluation demonstrated robust functionality and a final mean surface deviation of 2.89 mm. Remaining inaccuracies were mainly linked to sparse sensor coverage and sensor noise. Future development will focus on optimizing sensor placement protocols, mobile App integration, and machine learning enhanced error detection.

Source: OJS

DOI: 10.60643/urai.v2025p26

Authors: Wilhelm, Fabien, Shahid, Dua, Mock, Maximilian, Féry, Corentin, Tronnier, Uwe

Institutions: University of Applied Sciences Kaiserslautern, FHNW University of Applied Sciences and Arts Northwestern Switzerland

Language: English

Topic: Prosthetics and Rehabilitation Robotics

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: green

OpenAlex ID: W7141625694

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