摘要
利用图像序列对人体运动进行重构是人体运动分析研究中的一项关键技术。在直接线性变换技术以及人体生物力学模型的基础上,给出了用单个固定摄像机所拍摄的运动图像序列进行了人体运动空间重构的方法。本文提出了一种新的摄像机标定方法,根据实际情况可以选择世界坐标系以简化定标工作。对一段人体运动录像进行了重构计算,将计算结果和试验测试结果进行了比较,二者吻合良好。对该方法的优缺点进行了分析论述。
One of the key techniques in the research of human motion analysis is the reconstruction of human spatial motion utilizing the evaluation of the anatomic points positions that can uniquely define the position of all anatomical segments. Upon the bases of direct linear transform and human biomechanical model, the method to reconstruct an image sequence shot by a stationary camera was described. The result of the reconstruction process was a set of data that is kinematically consistent with the biomechanical model used. A new method to calibrate camera was developed which can be completed in any world coordination system according to the practical situation. A practical motion was selected as the investigated subject. The predicting and experimental results were in good agreement. The benefits and shortcoming of the methodology were discussed.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2005年第2期307-311,共5页
Journal of Biomedical Engineering
基金
国家 8 63计划资助项目 (2 0 0 2 AA743 0 3 2)
