Device Attitude and Real-Time 3D Visualization: An Interface for Elderly Care

Manuel Abbas (1) , Joaquim Prud'Homm (1) , Fabien Lemoine (1) , Dominique Somme (2) , Régine Le Bouquin Jeannes (1)

1 LTSI - Laboratoire Traitement du Signal et de l'Image
2 Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Ponchaillou]

This paper proposes an innovative graphical user interface to visualize the attitude of a sensing device in a three- dimensional space, serving a wide-range of medical applications. Based on inertial measurement units (IMU) or on Magnetic, Angular Rate and Gravity sensors (MARG), the proposed tool estimates Euler angles using a predefined attitude filter to display the orientation of the device relative to the Earth frame in real-time. The device is schematized by linking six polygonal regions, and is subject to sequential rotations by updating the graph each 350 ms. Two public datasets were used to demonstrate the value of this contribution in fall risk assessment and body posture monitoring for elderly care

Mots clés: graphical user interface; device altitude; sequential rotations; Euler angles; elderly care

Domaines: Traitement du signal et de l'image [eess.SP]; Electronique

Manuel Abbas, Joaquim Prud'Homm, Fabien Lemoine, Dominique Somme, Régine Le Bouquin Jeannes. Device Attitude and Real-Time 3D Visualization: An Interface for Elderly Care. JETSAN 2021 - Colloque en Télésanté et dispositifs biomédicaux - 8ème édition, Université Toulouse III - Paul Sabatier [UPS], May 2021, Toulouse, Blagnac, France. ⟨hal-03501197⟩