An Active Intraoral Shape Measurement Scheme Using a Compact Compound-Eye Camera with Integrated Pattern Projectors
スポンサーリンク
概要
- 論文の詳細を見る
We propose an active intraoral shape measurement scheme to realize a compact intraoral diagnostic system for measuring the three-dimensional shapes of gums and teeth. To measure intraoral surfaces with little texture, compact pattern projectors based on diffractive optical elements are integrated in lens gaps of a compact compound-eye camera called a thin observation module by bound optics (TOMBO). The three-dimensional shape is reproduced on the basis of triangulation using the amount of pattern distortion. A scaled-up prototype system is constructed to verify the measurement scheme using the TOMBO camera and a spatial light modulator. The prototype system demonstrates an rms distance accuracy of 0.46 mm. A temporal change of the shape is quantitatively evaluated with a reference surface based on teeth positions.
- 2009-09-25
著者
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Ueda Masatoshi
Department Of Periodontology Osaka Dental University
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Tanida Jun
Graduate School Of Information Science And Technology Osaka University
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Kagawa Keiichiro
Graduate School Of Information Science And Technology Osaka University
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Ogura Yusuke
Graduate School Of Information Science And Technology Osaka University
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Ogata Chizuko
Department Of Periodontology Osaka Dental University
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Toyoda Takashi
Funai Electric Co. Ltd.
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Masaki Yasuo
Funai Electric Co. Ltd.
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Nakao Yoshizumi
Funai Electric Co. Ltd.
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Toyoda Takashi
FUNAI Electric Co., Inc., Shin-Ogimachi Building, 1-3 Kamiyama-cho, Kita-ku, Osaka 530-0026, Japan
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Tanabe Hiroyuki
Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan
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Ueda Masatoshi
Department of Periodontology, Osaka Dental University, 1-5-17 Otemae, Chuo-ku, Osaka 540-0008, Japan
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Masaki Yasuo
FUNAI Electric Co., Inc., Shin-Ogimachi Building, 1-3 Kamiyama-cho, Kita-ku, Osaka 530-0026, Japan
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Kagawa Keiichiro
Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan
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