Patent ID: 8749488
Filing Date: 2014-06-10
Classification: G06F

Abstract:
1. An apparatus for providing a contactless Graphical User Interface (GUI), comprising: a basic information management unit for receiving finger image information, and generating basic pointer information for a mouse pointer service, wherein the basic information management unit sets a Z-axis distance threshold value (Zm) based on a size of a thumb using time series analysis in accordance to Zm=k*(Sth(t)−Sth(t−c)) in which k is a constant, Sth(t) is the size of the thumb in time frame t and Sth(t−c) is the size of the thumb in time frame t−c; a pointer tracking unit for analyzing the finger image information based on the basic pointer information, and generating a mouse operation event by tracking a mouse operation in order to control a mouse pointer based on results of the analysis, wherein the pointer tracking unit tracks the mouse operation by calculating a velocity (V) of a mouse pointer based on a movement distance between a thumb and an index finger in accordance to V=k1*exp(d*k2) in which k1 and k2 are constants and d is the movement distance between tips of the thumb and the index finger; and a mouse event management unit for analyzing the mouse operation event, and generating an operation message corresponding to the mouse operation.