Date of download: 11/7/2017 Copyright © ASME. All rights reserved. From: Biometric System for Measuring Gait and Fall Characteristics Captured on Video J Biomech Eng. 2014;136(7):071005-071005-10. doi:10.1115/1.4027469 Figure Legend: Implementation of the biometric system. Upper left: The points of contact of the hallux and heel with the ground are selected. Upper right: The position of the hidden anatomical landmark is corrected with the length of the foot. Bottom: The footprints of a sequence of five steps that were captured using this technique.