An Interactive Hand Gesture Recognition System on the Beagle Board
P. N. V. S. Gowtham · 2011
The aim of this paper is to provide with a real time application based on hand gesture recognition .The hardware requirements of the system are kept on the minimum , limiting only to a simple USB webcam and a PC .Other alternatives to the PC have also been presented , such as the Beagle Board , which is a mini version of a PC and very inexpensive .The approach is based on simple and fast motion detection trying to eliminate unnecessary regions of interest and a recognition algorithm based on the hand contours , their convexities and a further comparison of hand shapes based on HU moment matching which works on image contours .The paper also presents a way of improving the distorted hand contours by distinguishing between external contours and holes and explicitly filling up holes .The use of a predefined set of contours for each gesture helps in better recognition .A simple state machine is implemented to further improve reliability .A total of 5 gestures have been implemented and tested on the PC and the Beagle Board and the performance compared .A practical application using the five gestured detected has been proposed , which utilizes the Linux XLIB library and the X display to control mouse cursor actions and other display properties .