A Video Security System With Attendance Function

Because of the high number of burglariesˋpeople’s awareness of the safety to householdbelongings has improvedˋand Installation of surveillance cameras is the most common way todeal with it These surveillance cameras can only look back at the artificial real-timemonitoring or surveillance video But not in a timely manner to prevent potential cases ofalarm occurrence. This makes most of the functions of surveillance cameras has been limitedˋand reduces the security performance of the monitoring system.The video surveillance system described within this essay considers surveillance camerasmonitoring a single exit or entrance, such as cameras positioned at the entrance of a house ora laboratory. This video surveillance system can apply a series of image-processing toreal-time videos, determining whether the person is registered persons entering. When apassing person can not be identified as a qualified one, the system will alert and take note ofthis unqualified person. When a passing person is identified as a qualified one, his attendancerecord will be updated to reflect his current position. When needed, you can check alert recordand attendance record handily.The main contents are as follows.1ˋHuman face detection. Improved frame difference algorithm is applied to detecthuman motion region. Then AdaBoost human face detection from OpenCV is conducted onthose motion regions.2ˋHuman face image sample selection. Energy gradients are calculated to select thoseaccurately focused and clear human face images.3ˋHuman face identification. Both negative and positive LBP block samples are fed toan SVM vector machine to get a training model, which will be later put into use to identifythe human face.4ˋReviewing of former entrance record and alert record. All those record can be filteredby tags, which enables efficient queries.The methods discussed in this essay can make certain types of surveillance cameras more versatile, giving them abilities such as attendance recording and security managementand provide real-time video evidence of such things as theft.