Visualization Methods for Outdoor See-Through Vision

Takahiro TSUDA  Haruyoshi YAMAMOTO  Yoshinari KAMEDA  Yuichi OHTA  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E89-D   No.6   pp.1781-1789
Publication Date: 2006/06/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Human Communication II)
Category: Vision and Image
Keyword: 
mixed reality,  augmented reality,  subjective evaluation,  handheld MR device,  occlusion,  

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Summary: 
Visualizing occluded objects is a useful applications of Mixed Reality (MR), which we call "see-through vision." For this application, it is important to display occluded objects in such a manner that they can be recognized intuitively by the user. Here, we evaluated four visualization methods for see-through vision that can aid the user to recognize occluded objects in outdoor scenes intuitively: "elimination of occluding objects," "ground grid," "overlaying model of occluding object," and "top-down view." As we used a new handheld MR device for outdoor see-through vision, we performed subjective experiments to determine the best combination of methods. The experimental results indicated that a combination of showing the ground grid, overlaying wireframe models of occluding objects, and top-down view to be optimal, while it was not necessary to display occluding objects for outdoor see-through vision with a handheld device, because users can see them with the naked eye.