Detection Of Image-based Home Security System For The Study

With the developing of information technology, the digital video monitoring system which is based on network technology, communication technology, image processing and multimedia technology have been inosculating into the people's life of various fields and making more and more values. With the developing of the digital video monitoring system, it is also developing to the direction of intelligence monitoring. Peculiarities of the intelligence monitoring are to exam and analyze the dynamic video image and making some processing by the analysis results.On the base principle of the digital video monitoring system, this article designs a family security system basing on image examining. We can say that the system is a little edition of the digital video monitoring system. But it has its own characteristic and advantage: cheap and practical. It reuses the existing devices, implement the urgent need of monitoring and alarm in common family, which is in a low price. It reuses the existing PC in the family; installs one or several cheap camera and SMS module optionally. It monitors the scenes in the family such as doorway, window and so on. The family security system can be networked or be not. When networked, it can connect itself to the monitor centre of the district. Its alarm messages come from the real time analysis of moving videos. The manners of alarm are by mobile and network. Mobile alarm sends the alarm messages to the mobile numbers designated by the user. Network alarm sends the alarm messages to the living district's monitor centre through the internet.Alarm is the most useful function in the system. And the foundation of alarm is the result of the image examining. The method of image examining is come from the frame difference method of image processing. This article combines the characteristic of the family security system and the base principle of the frame difference method, advances a method of image examine and implements the alarm function.