Video Based Foot Sizing System
Optical Subassemblies designed and built the optical system which fits in the base of this video foot sizing system. A customer puts their foot on a window which is just above the small glint on the lower part of the system, where it is illuminated about the periphery by an array of infrared LED's. The foot is then viewed from beneath by an upwards looking CCD camera and the image is captured with a frame grabber. Machine vision algorithms then calculate the length, width and make an estimate of the arch height which are then printed on a small ticket for the customer to keep. Nine of these systems were built and installed in the Manhattan NikeTown.
US Patent No. 06,289,107