TY - JOUR T1 - An Abnormal Activity Monitoring System Using Sensors and Video AU - Kim, Sang-soo AU - Kim, Sun-woo AU - Choi, Yeon-sung JO - Journal of KIISE, JOK PY - 2014 DA - 2014/9/14 DO - KW - abnormal behavior monitoring KW - motion vector KW - abnormal behavior KW - weight difference image AB - In this paper, we presents a system to ensure the safety of residents through appropriate action or alarm in case the residents occurs an emergency situation and abnormal activity. We collect and analysis real-time data of living environment of the residents using video and sensor. The existing system have been determined by using only the sensor data it have several problems. Our system attach camera to solve the existing system problem. We use weighted difference image and motion vector. The existing system, it takes about 48 hours to determine that an abnormal activity occurs. However, our system takes less than 1 hour.