利用高帧频和高分辨率的数字相机作为系统的输入,采用DSP和FPGA以及大容量缓存的硬件架构,通过FPGA的逻辑编程灵活调配系统的资源,将图像采集、图像预处理、图像跟踪、图像显示等功能合理分配至各个硬件单元,提高了图像跟踪系统对小目标的跟踪精度。经实验验证,各个功能单元达到预期效果。基于Carema Link接口的图像跟踪系统具有图像分辨率高、跟踪带宽高的特点。

A digital camera with high frame frequency and high resolution is used for improving the precision of tracking little target. Using a hardware framework including DSP and FPGA and mass buffer storage, the resource of the system is flexibly assigned through the logic programming of FPGA. The image sampling, pretreatment, tracking and displaying function are reasonable distributed to each hardware unit. The effect of each function unit is anticipated through experiment testing. The tracking system based on the interface of Camera Link, which is introduced in this paper has high resolution and high precision of tracking.