3D motion pattern analysis of the foot

Presents a method with preliminary results on collecting and analysing 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 club-foot patients and to investigate ways in which motion pattern data can effectively be analysed 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 on to 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.