Human Spine Posture Estimation from 2D Frontal and Lateral Views Using 3D Physically Accurate Spine Model (ME and Human Body) (<Special Section>Machine Vision Applications)
スポンサーリンク
概要
- 論文の詳細を見る
This paper proposes the design of a physically accurate spine model and its application to estimate three dimensional spine posture from the frontal and lateral views of a human body taken by two conventional video cameras. The accurate spine model proposed here is composed of rigid body parts approximating vertebral bodies and elastic body parts representing intervertebral disks. In the estimation process, we obtain neck and waist positions by fitting the Connected Vertebra Spheres Model to frontal and lateral silhouette images. Then the virtual forces acting on the top and the bottom vertebrae of the accurate spine model are computed based on the obtained neck and waist positions. The accurate model is deformed by the virtual forces, the gravitational force, and the forces of repulsion. The model thus deformed is regarded as the current posture. According to the preliminary experiments based on one real MR image data set of only one subject person, we confirmed that our proposed deformation method estimates the positions of the vertebrae within positional shifts of 3.2 〜 6.8 mm. 3D posture of the spine could be estimated reasonably by applying the estimation method to actual human images taken by video cameras.
- 社団法人電子情報通信学会の論文
- 2004-01-01
著者
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MASE Kenji
ATR Media Information Science Laboratories
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Mori K
Information Technology R&d Center Mitsubishi Electric Corporation
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Mase Kenji
Information Technology Center Nagoya University
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TAKAHASHI Tomokazu
Graduate School of Information Science, Nagoya University
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Mori Kazutomi
Information Technology R&d Center Mitsubishi Electric Corporation
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MORI Kensaku
Graduate School of Information Engineering, Nagoya University
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SUENAGA Yasuhito
Graduate School of Information Engineering, Nagoya University
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Mori Kensaku
Faculty of Engineering, Nagoya University Graduate School
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Mori Kensaku
Graduate School Of Engineering Nagoya University
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Takahashi Takashi
Graduate School Of Information Science Nagoya University
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Kitasaka Takayuki
Graduate School of Information Science, Nagoya University
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FURUKAWA Daisuke
Graduate School of Engineering, Nagoya University
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TAKAHASHI Tomoichi
Faculty of Science and Technology, Meijo University
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Kato Takashi
Faculty Of Management And Information Science Aichi Institute Of Technology:mext Research Center For
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Suenaga Y
Graduate School Of Information Engineering Nagoya University:mext Research Center For Preventive Med
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Suenaga Yasuhito
Graduate School Of Engineering Nagoya University
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Furukawa Daisuke
Graduate School Of Engineering Nagoya University
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KITASAKA Takayuki
Graduate School of Business Administration and Computer Science, Aichi Institute of Technology
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SUENAGA Yasuhito
Graduate School of Business Administration and Computer Science, Aichi Institute of Technology
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