2013 Fiscal Year Final Research Report
Anatomy-based CG representation of human faces
| Project/Area Number |
21500108
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Media informatics/Database
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| Research Institution | Toho University |
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Principal Investigator |
SHINYA Mikio 東邦大学, 理学部, 教授 (50339199)
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| Co-Investigator(Kenkyū-buntansha) |
MARUYAMA Yu 東邦大学, 医学部, 名誉教授 (00101931)
HAYASHI Akiteru 東邦大学, 医学部, 教授 (30218557)
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| Project Period (FY) |
2009-04-01 – 2014-03-31
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| Keywords | コンピュータグラフィックス / 頭蓋顎顔面骨 / 顔面形状 / 主値解析 |
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| Research Abstract |
Reconstructing facial shapes from skull shapes is very important in forensic science and plastic and reconstructive surgery as well as computer graphics. In this study, we constructed three-dimensional database of both facial surface and cranio-maxillo-facial bones. This was performed by fitting the template bone surfaces to the specified feature points. We then applied the principal component analysis (PCA) to 64 sample bone shapes extracted from CT data. The analysis indicated that the bone shapes can be well represented by just 35 principal components. Further, we applied the independent component analysis (ICA) and compared the results with those from PCA. Based on these analyses, we introduced linear estimation to reconstruction between skulls and faces, and enabled reconstruction from partial skull data. We also confirmed that better performance can be obtained from linear estimation than from previous methods using special deformation methods.
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