Extraction and Classification of the Cultural Relic Model Based on Local Geometric Features

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  • Zhou Jilai
    School of Information Science and Technology, Northwest University
  • Zhou Mingquan
    School of Information Science and Technology, Northwest University College of Information Science and Technology, Beijing Normal University
  • Geng Guohua
    School of Information Science and Technology, Northwest University
  • Wang Xiaofeng
    School of Information Science and Technology, Northwest University

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<p>This paper proposes a novel approach to extracting local geometric features of the cultural relic. We first calculate Gaussian and mean curvature of the model. Then the surfaces of model are labeled for three fundamental types by the value of Gaussian and mean curvature. We use the region growing and expanding search method to obtain the local features of the model. We construct the templates based on the local features and prior knowledge. Finally, we achieve the retrieval of cultural relics by comparing the similarity of the template and the local feature of the model. We apply our method to identify and classify on Terracotta Warriors fragments. Experiments show that our method has the good retrieval performance.</p>

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