3D free-form gesture recognition system for character input

摘要

A system for 3D free-form gesture recognition, based on character input, which comprises (a) a 3D camera for acquiring images of the 3D gestures when performed in front of the camera; (b) a memory for storing the images; (c) a computer for analyzing images representing trajectories of the gesture and for extracting typical features related to the character during a training stage; (d) a database for storing the typical features after the training stage; and (e) a processing unit for comparing the typical features extracted during the training stage to features extracted online.