Abstract
This paper presents a method with preliminary results on collecting and analyzing dynamic data describing some foot motions in 3D space. The overall aim of the research is to represent and compare such data for normal and clubfoot patients and to investigate ways in which motion pattern data can effectively be analyzed by a computer based system. The method comprises three steps: first, sensor readings from an electromagnetic device are filtered, interpolated, and transformed; second, motion parameters described as roll, pitch, and yaw are evaluated from sensor data and projected onto 2D space from selected viewpoints; third, a convex hull analysis based on shape geometry is developed and performed on the projected parameters. Finally, a discussion on the suitability of the method for motion pattern analysis of the foot is presented.