Browsing by Author "Fu, Tong"

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    Anatomy Changes and Virtual Restoration of Statues
    (The Eurographics Association, 2020) Fu, Tong; Chaine, Raphaelle; Digne, Julie; Spagnuolo, Michela and Melero, Francisco Javier
    Restoration of archaeological artefacts is an important task for cultural heritage preservation. However traditional restoration processes are difficult, costly and sometimes risky for the artefact itself, due to poor restoration choices for example. To avoid this, it is interesting to turn to virtual restoration, which allows to test restoration hypotheses, that can be later carried out on the real artefact. In this paper, we introduce a restoration framework for completing missing parts of archaeological statues, with a focus on human sculptures. Our approach proceeds by registering an anatomical model to a statue, identifying the missing parts. Compatible statues are then provided by the users and their poses are changed to match the broken statue, using a point-cloud specific skinning technique. The modified statues provide replacement parts which are blended in the original statue.
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    FAKIR: An Algorithm for Revealing the Anatomy and Pose of Statues from Raw Point Sets
    (The Eurographics Association and John Wiley & Sons Ltd., 2020) Fu, Tong; Chaine, Raphaelle; Digne, Julie; Eisemann, Elmar and Jacobson, Alec and Zhang, Fang-Lue
    3D acquisition of archaeological artefacts has become an essential part of cultural heritage research for preservation or restoration purpose. Statues, in particular, have been at the center of many projects. In this paper, we introduce a way to improve the understanding of acquired statues representing real or imaginary creatures by registering a simple and pliable articulated model to the raw point set data. Our approach performs a Forward And bacKward Iterative Registration (FAKIR) which proceeds joint by joint, needing only a few iterations to converge. We are thus able to detect the pose and elementary anatomy of sculptures, with possibly non realistic body proportions. By adapting our simple skeleton, our method can work on animals and imaginary creatures.