公开(公告)号：US06324296B1

公开(公告)日：2001-11-27

申请号：US08985354

申请日：1997-12-04

申请人： Tracy D. McSheery ,  John R. Black ,  Scott R. Nollet ,  Jack L. Johnson ,  Vinay C. Jivan

发明人： Tracy D. McSheery ,  John R. Black ,  Scott R. Nollet ,  Jack L. Johnson ,  Vinay C. Jivan

IPC分类号： G06T720

CPC分类号： G06T7/246 ,  G06T7/70 ,  G06T7/80

摘要： Disclosed is a distributed-processing motion capture system (and inherent method) comprising: plural light point devices, e.g., infrared LEDs, in a motion capture environment, each providing a unique sequence of light pulses representing a unique identity (ID) of a light point device; a first imaging device for imaging light along a first and second axis; and a second imaging device for imaging light along a third and fourth axis. Both of the imaging devices filter out information not corresponding to the light point devices, and output one-dimensional information that includes the ID of a light point device and a position of the light point device along one of the respective axes. The system also includes a processing device for triangulating three-dimensional positions of the light point devices based upon the one-dimensional information. The system is very fast because the necessary processing is distributed to be maximally parallel. The motion capture system uses a cylindrical collimating (CC) optics sub-system superimposed on a cylindrical telecentric (CT) optics sub-system. The outputs of the plural light point devices are modulated to provide a unique sequence of light pulses representing a unique identifier (ID) for each of the light point devices according to a predetermined cycle of modulation intervals based upon synchronization signals provided via RF communication. At least two of the light point devices concurrently provide light during the cycle.

摘要翻译： 公开了一种分布式处理运动捕捉系统（和固有方法），其包括：运动捕捉环境中的多个点状设备，例如红外LED，每个提供独特的光脉冲序列，其表示光的唯一标识（ID） 点设备; 用于沿着第一和第二轴成像光的第一成像装置; 以及第二成像装置，用于沿着第三和第四轴成像光。 两个成像装置滤除与光点装置不相对应的信息，并且输出包括光点装置的ID和点光装置沿着各个轴之一的位置的一维信息。 该系统还包括用于基于一维信息对光点装置的三维位置进行三角测量的处理装置。 该系统非常快，因为必要的处理被分配以最大程度地并行。 运动捕捉系统使用叠加在圆柱形远心（CT）光学子系统上的圆柱准直（CC）光学子系统。 调制多个光点装置的输出，以基于通过RF通信提供的同步信号，根据调制间隔的预定周期，为每个光点装置提供表示唯一标识符（ID）的唯一序列的光脉冲。 在循环期间，至少两个点光装置同时提供光。