Data Reduction by Applying an Image-Based Modeling and Rendering Technique to CG Models

Authors:
H. Miyachi;N. Sakamoto
Affiliations:
Visualization Division, KGT Inc., 2-8-8 Shinjuku Shinjuku-ku Tokyo, 160-0022, Japan. E-mail: miyachi@kgt.co.jp;Center for the Promotion of Excellence in Higher Education, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan. E-mail: naohisas@mbox.kudpc.kyoto-u.ac.jp
Venue:
Journal of Visualization
Year:
2005

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Abstract

We applied an image-based modeling and rendering technique to reduce the data size of a CG model to be obtained as a visualization result. To date, this technique has been applied to the reconstruction of 3D graphical models from real objects; the size of the models can be reduced effectively because both color information and geometric information can be reduced. We applied a silhouette-and-voxel method that does not require design data for geometric simplification. Using our system, we simplified two models, one of which, involving medical data, was reduced by about 85% in file size. An accompanying subjective quality test showed that our approach maintains approximately the same visual quality as the geometric simplification method traditionally used.