摘要
针对图像类跟踪系统准确性和实时性的要求,设计了一种以TMS320DM642高速数字信号处理器为控制核心的目标跟踪半实物仿真系统,阐述了软硬件两部分功能的实现方案。将硬件电路划分为视频采集、视频处理以及外围电路3个模块。首先由CMOS图像传感器MT9V032提取视频图像,经A/D转换单元将数字化信号传送至DM642;同时结合背景差分法与Mean Shift跟踪算法确定目标位置,将偏移向量传输至伺服系统驱动云台同步转动,完成目标精确跟踪。实验结果表明,所提出的软硬件设计方案可较好地实现运动目标的实时检测与跟踪,为视频跟踪技术提供性能仿真平台。
Aeeording to the accuracy and real-time performance requirements of image tracking system, a semi-physical simulation target tracking system was designed by using TMS320DM642 DSP as lhe core of. control. The realization scheme of the func, tion of both software and algorithm is presented in this paper. The hardware circuit is divided into three modules of video acquisition, video processing and peripheral interface circuit. Firstly, the target inmge＇s acquisition is completed by CMOS image sensor MT9V032, and the digital signal is transferred to DM642 through A/D eonverter unit. Meanwhile, the background differencing method and Mean Shift tracking algorithm are combined to determine the target location. The uffset vectors are transferred to the servo system to drive the PTZ rotate synchronously for realizing accurate target tracking. The experimental results shows that the hardware design and algorithm can realize the real-time detection and tracking of moving target, and can provide feasible schemes for video tracking technology.
出处
《电光与控制》
北大核心
2016年第2期61-64,共4页
Electronics Optics & Control
基金
南京理工大学自主科研专项计划(ZDJH02)
