TitleOvercoming Eye-Hand Visibility Mismatch in 3D Pointing Selection
Publication TypeConference Proceedings
Year of Publication2008
AuthorsArgelaguet F, Andujar C, Trueba R
Conference NameProceedings of the 15th ACM Symposium on Virtual Reality Software and Technology, VRST '08
ISBN Number978-1-59593-951-7
Keywords3D Object Selection, 3D User Interfaces, Eye-Hand Visibility Mismatch, Fitts' Law, User Studies

Most current pointing techniques for 3D selection on virtual environments rely on a ray originating at the user's hand whose direction is typically controlled by the hand orientation. In this paper we study the potential mismatch between visible objects (those which appear unoccluded from the user's eye position) and selectable objects (those which appear unoccluded from the user's hand position). We study the impact of such eye-hand visibility mismatch on selection performance, and propose a new technique for ray control which attempts to overcome this problem. We present several experiments to compare our ray control technique with classic raycasting in selection tasks with complex 3D scenes. Our user studies show promising results of the new technique in terms of speed, accuracy and user acceptance.

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