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Spine posture estimation method from human images using 3D spine model computation of the rough approximation of the physical forces working on vertebral bodies

机译：使用3D脊柱模型计算人体图像的脊柱姿势估算方法，该模型对作用于椎体的物理力进行粗略近似

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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.
机译：本文介绍了一种使用人体脊柱模型从人体图像估算人体脊柱姿势的方法，该模型可以计算作用在椎体上的物理力的近似值。脊柱姿势估计模型由每个建模为刚体的椎体和建模为弹簧的椎间盘组成。我们的方法除了使用根据实际人体图像估计的头部，躯干和手臂的位置以外，还使用脖子和腰部的位置。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。根据基于一个对象人的一个真实MR图像数据集的实验，我们的方法估计了在大约6.3 mm的位置偏移和大约3.1度的旋转变化范围内的椎骨位置。我们还证实了计算出的方法可以合理估计作用在椎体上的物理力。

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