PID控制算法在视频跟踪系统中的实现  

Realization of PID Control Algorithm in Video Tracking System

作　　者：张玲[1] 周继光[1] 何伟[1] 

机构地区：[1]重庆大学通信工程学院,重庆400030

出　　处：《工业控制计算机》2007年第7期15-16,共2页Industrial Control Computer

摘　　要：提出了视频跟踪系统中利用PID算法控制云台的实现方法,并分析了该算法的控制原理和实现过程,阐述了其控制流程及其参数的确定。在视频跟踪系统中,系统能否准确识别、及时锁定并实时跟踪目标的前提在于CCD能否准确及时地摄入目标,从而为系统提供良好的目标图像源。提出的云台控制方法经过实际系统测试表明,只要选择合理的PID参数,就能克服云台在高速旋转过程中产生的过冲和抖动现象,使云台在视频跟踪过程中准确到位,以满足整个视频跟踪系统的实时性、准确性和稳定性的要求。In this paper,it is introduced that how to realize the PID algorithm of position mode in video tracking system. Control principles and realization process of the PID algorithm are also explained.The control process and parameters selection of PID algorithm are introduced particularly, In the video tracking system,whether it can recognize and track the target correctly and quickly or not depends on whether CCD can fix on the target in time and provide a good image source of the target for the whole system,The method introduced to control the CCD in this article has already been tested in the real system, The test says that the PID control algorithm is able to resolve the over-turn problems of the CCD with high speed so long as the PID parameters are selected properly,And the test also indicates that the PID algorithm using in this video tracking system can meet the requests of real-time property,veracity and stability,

关 键 词：PID算法 视频跟踪 识别 实时 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]