基于单目视频运动跟踪的三维人体动画

针对传统人体动画制作成本高、人体运动受捕获设备限制等缺陷,提出了一种基于单目视频运动跟踪的三维人体动画方法。首先给出了系统实现框架,然后采用比例正交投影模型及人体骨架模型来恢复关节的三维坐标,关节的旋转欧拉角由逆运动学计算得到,最后采用H-anim标准对人体建模,由关节欧拉角驱动虚拟人产生三维人体动画。实验结果表明,该系统能够对人体运动进行准确的跟踪和三维重建,可应用于人体动画制作领域。

3D Human Animation Based on Human Motion Tracking from Monocular Video Sequences

The traditional approaches to make human animation are suffering from the problems of expensive cost and human body motion limited by motion capture equipment,to overcome these shortcomings,a new 3D human animation based on human motion tracking from monocular video sequences is proposed.Firstly,the framework of our system is presented,then,the 3D coordinates of joints are estimated by human skeleton constrain under scaled orthographic projection,the rotation Euler angles of joints are calculated by inverse kinematics.Finally,we use H-anim to represent virtual human,the motion of virtual human is drove by the Euler angles of joints.The experiments show that tracking and reconstructing results made by our system are accurate and effective.This system can be applied to human animation.