基于大面阵摄像机的多处理器跟踪系统的设计

Designed of multi-dsp tracking system by bigger planar camera

为了解决高帧频大面阵数字摄像机数据量大,跟踪器实时性很难满足的问题,设计了基于双数字信号处理器TMS320C6203B的电视跟踪平台,合理组织双数字信号处理器的图像数据,即其中一个数字信号处理器用于全视场捕获目标,使运算量减少了数倍;另一个数字信号处理器根据捕获到目标大小和位置确定跟踪区域,在跟踪区域内进行全分辨率跟踪,既实现了快速目标捕获,同时又保证了跟踪精度。此系统在保证实时性的前提下,实现了对帧频为74 Hz,面阵为1 280×1 024的数字摄像机多达5个目标的跟踪。

Big planar and high frame rate digital camera has the issue of very large data volume,so it is difficult to tracking at real time,to resolve this issue,the TV tracking platform was designed which is based on two DSP TMS320C6203B,i.e.,one is used to capture the target at coarse resolution,so that the calculation is reduced;the other is to tracking the area based on the size and position of captured target so that it can track the target at full resolution.The design is able to both capture target real time and ensure the precision of the measurement.This system can track up to five targets at real time using digital camera which has frame frequency of 74Hz,pixel of 1 280×1 024.