| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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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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