BoostHand : Distance-free Object Manipulation System with Switchable Non-linear Mapping for Augmented Reality Classrooms

In this paper, we propose BoostHand, a freehand, distance-free object-manipulation system that supports simple trigger gestures using Leap Motion. In AR classrooms, it is necessary to allow both lecturers and students to utilize virtual teaching materials without any spatial restrictions, while handling virtual objects easily, regardless of distance. To provide efficient and accurate methods of handling AR classroom objects, our system requires only simple intuitive freehand gestures to control the users virtual hands in an enlarged, shared control space of users. We modified the GoGo interaction technique [5] by adding simple trigger gestures, and we evaluated performance against gaze-assisted selection (GaS) capabilities. Our proposed system enables both lecturers and students to utilize virtual teaching materials easily from their remote positions.