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Published in:
2017 | OriginalPaper | Chapter
Guidance Method to Allow a User Free Exploration with a Photorealistic View in 3D Reconstructed Virtual Environments
Authors : Sho Iwasaki, Takuji Narumi, Tomohiro Tanikawa, Michitaka Hirose
Published in: Distributed, Ambient and Pervasive Interactions
Publisher: Springer International Publishing
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Abstract
Architectural reconstruction based on photographs is important for digitally archiving historic buildings. In addition, freely exploring a reconstructed Virtual Environment (VE) enhances users’ understanding of and interest in the background cultural information. However, reconstructed models often have errors as well as terribly distorted views when viewed from a point distant from where the pictures were taken. Because of this problem, it is difficult to allow users to freely explore in a VE while keeping photorealistic views.
In this study, we propose a new method that enables both free exploration and high rendering quality by implicitly guiding users to the well-rendered viewpoints. First, we evaluate the rendering quality of the reconstructed model with view-dependent texture mapping. Second, by combining the evaluation results, we create a type of potential field that defines which direction to guide the users. Experimental results suggest that our proposed method can decrease the distortion in the views during VE exploration, and can possibly allow free exploration in VEs.