方　浩　李艾华　王　涛

(第二炮兵工程大学　陕西 西安 710025)



基于DM6437的智能视频监控系统设计与实现

方浩*李艾华王涛

(第二炮兵工程大学陕西 西安 710025)

摘要针对阵地视频监控系统智能化程度低的问题，提出一种基于DM6437的智能视频监控系统解决方案。在图像处理算法方面，将ViBe算法中采用第一帧图像建模和基于随机策略进行模型更新的思想用于改进传统码本算法的训练和更新阶段，提出一种基于随机码本的运动目标检测算法以提高检测效果。提出在Mean Shift跟踪过程中采用Kalman滤波器预测目标位置，用于提高目标快速运动和遮挡等复杂情况下的跟踪效果。在系统实现方面，基于DM6437芯片设计了集图像采集与显示、检测与跟踪、JPEG压缩、网络传输等多种功能于一体的智能视频监控系统。模拟阵地环境下的实验结果表明，该系统能够准确地自动检测和跟踪目标，并且帧率可达6、7帧左右。

关键词智能视频监控DM6437ViBe码本Kalman滤波器Mean Shift

DESIGN AND REALIZATION OF A DM6437-BASED INTELLIGENT VIDEO MONITORING SYSTEM

Fang Hao*Li AihuaWang Tao

(The Second Artillery Engineering University,Xi’an 710025,Shaanxi,China)

AbstractTo solve the problem of low intellectualisation degree in video monitoring system of positions,in this paper we put forward a DM6437-based solution of intelligent video monitoring system. In terms of image processing algorithm,we proposed a random codebook-based moving targets detection algorithm for improving the detection performance,it is achieved by applying the ideas of adopting the first frame for modelling and updating the model based on random strategy in ViBe algorithm to improving the training and updating stages of traditional codebook algorithm. And then we proposed to use Kalman filter to predict the target position in Mean shift tracking process,so as to improve tracking effects in complicated cases such as rapid target motion and occlusion. In terms of system realisation,we designed an intelligent video monitoring system based on DM6437 chip with various functions,such as video capture and display,targets detection and tracking,JPEG compression and network transmission,integrated. And the result of experiments in simulating the environment of positions showed that the system could detect and track targets automatically and accurately with a rate up to 6 or 7 frames.

KeywordsIntelligent video monitoringDM6437ViBeCode bookKalman filterMean shift

0引言

视频监控是部队信息化建设的重要方面。目前，阵地视频监控子系统采用的是前端由各型摄像机进行视频采集，经由同轴电缆进行数据传输，后端由综合管理计算机和网络存储服务器进行综合管理的模式。这种系统仅能实现24小时录像监控功能，并且需要人员全天候值守，不仅极大地浪费人力物力，而且系统智能化程度不高，不利于阵地安全防范能力的提高。

针对上述问题，本文基于DM6437芯片设计了一套智能视频监控系统。主要功能是实现对静态场景中目标的自动检测与跟踪，为后续构建智能化阵地视频监控系统打基础。……