LOW-COST 2D GAIT ANALYSIS

Abstract

A structure of present gait analysis laboratory has several cameras located around a walkway, which are linked to a computer. The patient has markers placed at various reference points of the body, or groups of markers covered to half of the body segments. The subject walks down the pathway or the treadmill and the computer with cameras measures the trajectory of each marker located on body in three dimensions. A model is preferred to evaluate the movement of the subject joints. This gives a complete overview of the orientation of each joint. The instruments and tools used in present gait analysis laboratory are very expensive, so it is not possible to implement it in every clinic of India. In proposed system walking video is used for gait analysis. A Video is captured from the sagittal plane as well as frontal plane; a pathway will be prepared for volunteer walking. Volunteer walking video will be captured by the frontal and sagittal plane camera. The captured video is going to be processed by MATLAB software for feature extraction like joint angles. A program is going to developed in MATLAB to perform operations like video to frame conversion, selection of gait phase frames, location extraction of markers, forming stick figure and angle measurement