使用动态空间摄像机（DSVC）和4D人体模型从体表形状估计人体运动的骨骼运动

Estimation of skeletal movement of human locomotion from body surface shapes using dynamic spatial video camera (DSVC) and 4D human model.

作者信息

Saito Toshikuni, Suzuki Naoki, Hattori Asaki, Suzuki Shigeyuki, Hayashibe Mitsuhiro, Otake Yoshito

机构信息

Graduate School of Science and Engineering, Waseda University, #61-306 Sota Lab., 3-4-1 Ookubo Shinjyuku-ku, Tokyo, 169-8555, Japan.

出版信息

Stud Health Technol Inform. 2006;119:467-72.

PMID:16404101

Abstract

We have been developing a DSVC (Dynamic Spatial Video Camera) system to measure and observe human locomotion quantitatively and freely. A 4D (four-dimensional) human model with detailed skeletal structure, joint, muscle, and motor functionality has been built. The purpose of our research was to estimate skeletal movements from body surface shapes using DSVC and the 4D human model. For this purpose, we constructed a body surface model of a subject and resized the standard 4D human model to match with geometrical features of the subject's body surface model. Software that integrates the DSVC system and the 4D human model, and allows dynamic skeletal state analysis from body surface movement data was also developed. We practically applied the developed system in dynamic skeletal state analysis of a lower limb in motion and were able to visualize the motion using geometrically resized standard 4D human model.

摘要

我们一直在开发一种动态空间摄像机（DSVC）系统，以定量且自由地测量和观察人体运动。已构建了一个具有详细骨骼结构、关节、肌肉和运动功能的四维人体模型。我们研究的目的是使用DSVC和四维人体模型从身体表面形状估计骨骼运动。为此，我们构建了一个受试者的身体表面模型，并对标准四维人体模型进行缩放，以使其与受试者身体表面模型的几何特征相匹配。还开发了一种软件，该软件集成了DSVC系统和四维人体模型，并允许根据身体表面运动数据进行动态骨骼状态分析。我们将开发的系统实际应用于运动下肢的动态骨骼状态分析，并能够使用经几何缩放的标准四维人体模型可视化该运动。