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A matrix method for human hand gesture description

In this paper, a method for human hand gesture description using matrix theory is presented. Based on human hand skeleton structure a hand model is built for describing the DOFs (degrees of freedom) distribution of all the finger joints. The posture vectors of five fingers are defined and the human hand gesture matrix consisting of five finger posture vectors is constructed. The change between two hand gestures is expressed by a hand gesture transformation matrix. A method to measure the angle values of finger joints is presented. Based on the measured angle values the five common human hand gestures and the change between two hand gestures are described by the matrix method.