摘要
针对目前虚拟与现实交互中摄像机跟踪系统存在的不足,提出了一种基于USB和FPGA的跟踪数据采集和传输方法设计;提出将数据采集模块集成在云台中,保证对摄像机平遥、俯仰和变焦的运动参数实时采集,计数,并矫正后通过USB传输到工控机;该设计可以改良目前虚拟与现实交互中跟踪数据受传输距离的影响而产生的信号损耗和延时,使得平摇精度达到0.004°、俯仰精度达到0.01°、变焦精度达到0.002°,以及初始化定位时给操作带来的不便;整个系统集成度得到提高、抗干扰能力增强,同时整体性能更加稳定可靠。
According to the shortcoming of camera tracking system in virtual and reality interaction. This paper proposes a method in tracking data acquisition and transmission based on USB and FPGA. This design integrates the data acquisition module in panhead, guaran- tees the real--time acquisition and count for the camera＇s pan, tilt and zoom parameters, then transfers to the industrial controller after cor- rection by USB. This design can improve the phenomenon in signal loss and delay of tracing data produced by the influence of the transmis sion distance and the operating inconvenience when operate initialization in the virtual and reality interaction. Integration of the entire system is improved, anti--jamming capability is enhanced, meanwhile the overall performance is more stable and reliable.
出处
《计算机测量与控制》
北大核心
2014年第2期528-530,共3页
Computer Measurement &Control
基金
航空基金项目资助(2012ZC53042)
