Like other Kinect-based touch sensing systems, this can detect the coordinates of a finger tap on an ordinary wall. FarOut is a new system developed by Carnegie Mellon researchers that extends Kinect touch sensing range to 3 meters.
But such a setup traditionally has a limited range - usually less than 1.5 meters. If you want to recognize touches on the scale of an entire wall, a Kinect sensor could be more appropriate. That makes sense for smartphones and tablets, but isn’t ideal for large scale applications. The results of the study suggest that the Kinect sensor may be used as an alternative device to measure some gait parameters for treadmill walking, depending on the desired accuracy level.Capacitive touchscreens today use a digitizer to pinpoint the coordinates of a finger tap. The walking speed was also found to significantly affect the identified timing of toe off. The Kinect sensor can follow the trend of the joint trajectories for the knee and hip joints, though there was substantial error in magnitudes. The temporal gait parameters based purely on heel strike have less error than the temporal gait parameters based on toe off.
Average heel strike frame errors were 0.18 and 0.30 frames for the right and left foot, respectively, while average toe off frame errors were −2.25 and −2.61 frames, respectively, across all participants and all walking speeds. The results showed that the accuracy levels when using the Kinect sensor varied across the gait parameters. Spatiotemporal gait parameters and knee and hip joint angles were extracted from the two devices and were compared. Twenty healthy participants walked on the treadmill and their full body kinematics data were measured by a Kinect sensor and a motion tracking system, concurrently. The current study further examined the accuracy level of the Kinect sensor for assessment of various gait parameters during treadmill walking under different walking speeds. In some recent studies, the possibility of using the portable, low cost, and marker-less Microsoft Kinect™ sensor to measure gait parameters on over-ground walking has been examined.
The measurement of gait parameters normally requires motion tracking systems combined with force plates, which limits the measurement to laboratory settings.
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