摘要
提出了一种新的运动目标跟踪算法。通过预测运动目标下一时刻的位置以及缩小目标搜索范围来提高跟踪速度。该算法使用运动目标加速度运动位移方程预测下一时刻目标可能出现的位置,使用预测位置误差方程估计运动目标搜索范围,并使用IIR滤波器对目标运动速度、加速度等参数自适应地修正。实验证明,该算法即使当运动目标做加速运动时,也可准确地预测运动目标的位置,缩小目标搜索范围,进而提高目标跟踪速度。
A novel moving objects tracking algorithm is proposed. The tracking speed is raised by virtue of predicting the position that a moving object arrives at the next time and reducing the search region. In the tracking algorithm, an acceleration equation is calculated for estimating the new position of a moving object, and an error formula of predictive position is used to adjust the moving object search region automatically. In order to predict the future position accurately and simplify computation complexity, by using IIR filters, several motion parameters such as velocity and acceleration are updated adaptively each frame. Several experiments are given to show that the proposed algorithm can improve object tracking speed by means of predicting a moving object position and reducing search region even if this moving object undergoes accelerated motion.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2007年第11期1991-1993,共3页
Systems Engineering and Electronics
基金
国家"863"高技术研究发展计划资助课题(2006AA01Z324)
关键词
视频监视
运动目标跟踪
位置预测
video surveillance
moving objects tracking
position prediction
