New trends towards a marker-free system for gait analysis

Elodie F. Calais; Franck Marzani; Louis Legrand; Alain Jacquemard

doi:10.1117/12.387627

6 June 2000 New trends towards a marker-free system for gait analysis

Elodie F. Calais, Franck Marzani, Louis Legrand, Alain Jacquemard

Author Affiliations +

Proceedings Volume 3979, Medical Imaging 2000: Image Processing; (2000) https://doi.org/10.1117/12.387627
Event: Medical Imaging 2000, 2000, San Diego, CA, United States

Abstract

This paper deals with human motion analysis without using markers. It presents a new approach of human motion tracking in three sequence of images acquired simultaneously by a calibrated vision system. The analysis process leads to the three-dimensional reconstruction of a superquadric-based model representing the human body. The motion on the images is first computed with an optical flow method; it is followed by a crest line detection and by the classification of the parts of the superquadric with a Least Median of Squares algorithm. The results presented in the following concern more specifically the analysis of movement disabilities of a human leg during the gait.

Citation Download Citation

Elodie F. Calais, Franck Marzani, Louis Legrand, and Alain Jacquemard "New trends towards a marker-free system for gait analysis", Proc. SPIE 3979, Medical Imaging 2000: Image Processing, (6 June 2000); https://doi.org/10.1117/12.387627

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