A Framework for Gesture Interface Design

Abstract—Gesture interfaces have long been pursued,in the context of portable computing,and immersive,environments. However, such interfaces have been difficult to build, in part due to a lack of frameworks,for their design and implementation. This paper,presents a framework,for automatically producing,a gesture interface based,on a simple,interface description. Rather than defining hand poses in a lowlevel high-dimensional joint angle space, we describe and recognize gestures in a “lexical” space, in which each hand pose is decomposed,into elements,in a finger-pose alphabet. The alphabet,and underlying,rules are defined as a gesture notating,system,called GeLex. By implementing,a generic hand pose recognition algorithm, and a mechanism to adapt it to a specific application based on an interface description, developing,a gesture interface becomes,straightforward. Index Terms—Human computer interaction, hand pose