Enhanced Hand Manipulation Methods for Efficient and Precise Positioning and Release of Virtual Objects

Noritaka OSAWA  

IEICE TRANSACTIONS on Information and Systems   Vol.E91-D   No.10   pp.2503-2513
Publication Date: 2008/10/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e91-d.10.2503
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Multimedia Pattern Processing
direct manipulation by hand,  position adjustment,  viewpoint adjustment,  release adjustment,  immersive environment,  

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Automatic adjustment methods for efficient, precise positioning and release of a virtual 3D object by direct hand manipulation in an immersive virtual reality environment are described and evaluated. The proposed methods are release adjustment, position adjustment, viewpoint adjustment, and virtual hand size adjustment. Combining these methods enables users to manipulate a virtual object efficiently and precisely. An experimental evaluation showed that these methods were effective and useful in terms of the number of task completions and the subjective preference, particularly for a small virtual target.