Spine posture estimation method from human images using 3D spine model computation of the rough approximation of the physical forces working on vertebral bodies
Spine posture estimation method from human images using 3D spine model computation of the rough approximation of the physical forces working on vertebral bodies
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DOI：
10.1109/icpr.2004.855
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发表时间：
2004-08
期刊：
影响因子：
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通讯作者：
D. Furukawa;T. Kitasaka;K. Mori;Y. Suenaga;K. Mase;Tomoichi Takahashi
中科院分区：
文献类型：
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作者：
D. Furukawa;T. Kitasaka;K. Mori;Y. Suenaga;K. Mase;Tomoichi Takahashi
本文介绍了一种方法，用于估计人体脊柱姿势从人体图像使用人体脊柱模型，是可能的计算工作在椎体上的物理力的粗略近似。脊柱姿势估计模型由椎体和椎间盘组成，每个椎体被建模为刚体，椎间盘被建模为弹簧。我们的方法除了使用从实际人体图像中估计的头部、躯干和手臂的位置之外，还使用颈部和腰部的位置。使脊柱模型变形，以便将脊柱模型的顶部和底部椎骨定位到估计的颈部和腰部位置。根据基于一个受试者的一个真实的MR图像数据集的实验，我们的方法估计椎骨的位置在约6.3 mm的位置偏移和约3.1度的旋转变化内。我们还证实了该方法计算的合理估计的物理力作用在椎体上。
This paper describes a method for estimating a human spine posture from human images using a human spine model that is possible to compute the rough approximation of the physical forces working on vertebral bodies. The spine posture estimation model is composed of the vertebral bodies, each of which is modeled as a rigid body, and the intervertebral discs that are modeled as springs. Our method uses the positions of the neck and waist in addition to the positions of the head, torso, and arms estimated from the actual human images. The spine model is deformed so as to locate the top and the bottom vertebrae of the spine model to the estimated neck and waist positions. According to the experiments based on one real MR image dataset of one subject person, our methods estimated the positions of the vertebrae within positional shifts of about 6.3 mm and the rotational variation of about 3.1 degrees. We also confirmed the methods calculated the reasonable estimation of the physical forces working on the vertebral body.