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Digital Conservation of Cultural Assets
Yoshihiro Okada 1 and Tetsuo Shoji 2
1 Graduate School of Science and Technology, Ryukoku University
1-5 Yokotani, Seta Oe-Cho, Otsu, Shiga, Japan
okada@rins.ryukoku.ac.jp
2 Faculty of Sociology, Nara University
1500 Misasagi-cho, Nara, Japan
g_rcnl@daibutsu.nara-u.ac.jp
Abstract. Research goal of archiving is not simply digitalization of assets ,but
archiving based on clarification of the original structures of the assets.
For
example, the information on old and deteriorated documents may be difficult to
decipher. We aims to make such material widely available after using advanced
analytic techniques to revive script and illustrations, thus restoring the
document to its original form. First Cases: The Nishi Hongwanji holds a large
collection of paintings and artifacts. To preserve the cultural property we are
investigating preservation, conservation and conservation documentation
methods. Second Cases: we report the virtual reconstruction and
conservation of a lost cave shrine. The purpose of this research is to
search for the possibility of the digital restoration that maintained the
resolution for the r ealistic representation and the interactive media for
digital archives of ruins in the future.
Keywords: Digital Archives, Photo Realistic Representation, Mixed-Reality,
Image-Based Rendering (IBR), Model-Based Rendering (MBR).
1 Introduction
Nowadays, large numbers of cultural properties are found that have deteriorated
through exposure to sunlight and dust over a long period of time, and that require
conservation, repair or restoration. Recent years have seen active use of digital
archiving technology to preserve or restore paintings, artifacts and other cultural
properties that contain highly valuable historical information. In the study presented
here, First Cases: The Nishi Hongwanji holds a large collection from the Momoyama
era, paintings and artifacts, as well as the Momoyama style architecture. To preserve
the cultural property we are investigating preservation, conservation and conservation
documentation methods.
In the Nishi Hongwanji digital archive project, pigments data and measuring data
from digital images are gathered and the database is developed.
In this paper, pigments on 'shouhekiga', pictures on (room) partition, or 'ranma',
Japanese traditional transom are analyzed, and 3D computer graphics is constructed
using the analysis data of pigments and gold foil.
 
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