Volume :8 , Issue :4 ,Page :256 - 264

Abstract :Gesture recognition is one form of human interaction that can be used effectively in human- computer- interaction. Human-computer-interaction is related to exchange of information between human beings and the computers. In this research work by recognizing the particular gesture given by the user, the microcontroller activates a corresponding relay circuit which in turn, operates the appropriate device. The microcontroller was programmed to transmit the status of a particular device, whether ON or OFF, to a laptop using the ZigBee wireless protocol. Gesture recognition provides a user-friendly modus operandi and a personalized touch to the operation of household devices. We used MEMS Accelerometer to capture motion trajectory information based on accelerations of objects to recognize gestures. The Accelerometer sensor measures acceleration values related to the gesture movements and passes this information to a PIC microcontroller, which will operate the corresponding device. Other authentication methods such as voice activated command system require very high accuracy. Especially when used by stressed or distracted people, the accuracy of authentication by voice command system is lower, whereas higher accuracy of device authentication can be obtained by the proposed gesture recognition. The proposed method is also highly cost effective compared to the voice command authentication systems.