中文摘要：

针对运动目标检测技术在国防军工领域的广泛应用,设计了一种基于FPGA的运动目标检测系统.利用CCD摄像头采集带有运动目标的视频图像,并将采集后视频图像传输给SAA7113H进行解码,再将解码后的数字信号供给FPGA实现帧间差分算法以达到运动目标检测的目的,之后将数据传输给SAA7121H芯片进行编码,并将编码后的视频数据在显示单元中显示.实验测试结果表明,该运动目标检测系统能够实时地检测出运动目标,稳定性高,实时性好.

英文摘要：

In view of the wide application of moving object detection technique in the field of national defense,a kind of moving object detection system is designed based on FPGA.Video image with a moving target is collected by using CCD camera,and the sampled video image is transmitted to SAA7113H for decoding.Then decoded digital signal is supplied to the FPGA to realize frame difference algorithm to achieve the purpose of moving target detection,the data is transmitted to a SAA7121H chip to encode,and the encoded video data displays in the display unit.The experimental results show that,the moving target detection system can real-time detect moving targets,and it has high stability and good real-time performance.