Abstract: A postural sway analysis system is disclosed. The system includes a camera worn by an individual, a processing unit coupled to the camera, a floor marker placed on a floor near the shoes or feet of the individual. The camera is configured to acquire images of the floor marker, which has a known size or diameter, while the individual is standing. The processing unit is configured to capture an initial calibration image of the floor marker using the camera while an individual is standing still to determine the distance between the camera and the floor marker. The processing unit is further configured to capture subsequent time-varying images of the floor marker while the individual is standing (and swaying). Furthermore, the processing unit is configured to compare the calibration images to the subsequent time-varying images to determine a postural sway of the individual.

Abstract: A method for acquiring gait parameters of an individual is disclosed. The method includes capturing calibration images from foot marker placed on feet or shoes of an individual while an individual is standing still, the calibration images are obtained from a camera worn by the individual, capturing subsequent time-varying images from the foot markers while the individual is walking, and comparing the calibration images to the subsequent time-varying images by a processing unit that is coupled to the camera to determine changes between the initial relative image size of the foot markers and the time-varying images of the foot markers as a function of time to analyze gait of the individual.

Abstract: A method for acquiring gait parameters of an individual is disclosed. The method includes capturing calibration images from foot marker placed on feet or shoes of an individual while an individual is standing still, the calibration images are obtained from a camera worn by the individual, capturing subsequent time-varying images from the foot markers while the individual is walking, and comparing the calibration images to the subsequent time-varying images by a processing unit that is coupled to the camera to determine changes between the initial relative image size of the foot markers and the time-varying images of the foot markers as a function of time to analyze gait of the individual.

Abstract: A method for acquiring gait parameters of an individual is disclosed. The method includes capturing calibration images from foot marker placed on feet or shoes of an individual while an individual is standing still, the calibration images are obtained from a camera worn by the individual, capturing subsequent time-varying images from the foot markers while the individual is walking, and comparing the calibration images to the subsequent time-varying images by a processing unit that is coupled to the camera to determine changes between the initial relative image size of the foot markers and the time-varying images of the foot markers as a function of time to analyze gait of the individual.