A REAL-TIME GESTURE RECOGNIZER BASED ON DYNAMIC-PROGRAMMING

Authors
Citation
Ai. Tew et Cj. Gray, A REAL-TIME GESTURE RECOGNIZER BASED ON DYNAMIC-PROGRAMMING, Journal of biomedical engineering, 15(3), 1993, pp. 181-187
Citations number
11
Categorie Soggetti
Engineering, Biomedical
ISSN journal
01415425
Volume
15
Issue
3
Year of publication
1993
Pages
181 - 187
Database
ISI
SICI code
0141-5425(1993)15:3<181:ARGRBO>2.0.ZU;2-4
Abstract
Coded gestures are physical movements to which precise meanings have b een attached. Their use with an electronic pointing device potentially increases the power of the pointer by allowing several distinct contr ol functions to be incorporated. The formation of a coded gesture is i nvariably subject to distortions which make its automatic recognition difficult. After particular consideration of three techniques, a dynam ic programming algorithm was developed and was used in the design of a real-time gesture recognizer that allows mouse-driven software to be operated purely by means of an electronic pointer. The decision was ta ken to implement the gesture recognizer using a widely available, obso lescent microcomputer in order to keep down costs. Despite the inevita ble technical compromises in this approach, results of preliminary tri als using 10 normal subjects show an average gesture recognition rate of 98.3% and a gesture confusion rate of only 0.4%.