User study of hand gestures and fatigue for CAD interfaces
Thakur, Aditya Vishwanath
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Gestures are an important medium of human communication and have been studied throughout the centuries from different viewpoints and in different domains ranging from arts, linguistics, philosophy and engineering. Recent developments in gestures based human-computer interaction (HCI) studies are noteworthy. However, application of hand gestures in CAD modeling is rarely found. The present study focuses on identifying various aspects of gestural communication that can be used as an input to a gesture based CAD software. A literature study comprising of hand gesture usage and overview of CAD methodology is presented. A repository of hand gestures is created that can be used as reference for prospective gestural commands for CAD software. A prototype gesture based tracking interface using Microsoft .Net framework was developed for Microsoft Kinect(TM) and Leap motion. The hand fatigue of 12 users of the prototype interface was quantified. Future work and possibilities of gestures in 3D CAD modeling platform are discussed.