Reza hassanpour - Department of Computer Engineering Cankaya University, Ankara, Turkey
Asadollah Shahbahrami - Department of Computer Engineering, University of Guilan, Rasht, Iran

With the rapid emergence of 3D applications and virtual environments incomputer systems; the need for a new type of interaction device arises. This isbecause the traditional devices such as mouse, keyboard, and joystick becomeinefficient and cumbersome within these virtual environments. In other words,evolution of user interfaces shapes the change in the Human-Computer Interaction(HCI). Intuitive and naturalness characteristics of Hand Gestures in the HCIhave been the driving force and motivation to develop an interaction device whichcan replace current unwieldy tools. A survey on the methods of analyzing, modelingand recognizing hand gestures in the context of the HCI is provided in this paper.Taxonomy of the different algorithms based on the applications that they havebeen developed for and the approaches that they have used to representgestures is presented. In addition, direction of future developments is discussed.

Gesture Recognition, Human Computer Interaction