Abstract
The dementia patients sometimes wander about in the city or the building at night. So, the probability of their having an accident is increased. Furthermore, care receivers have an accident when they climb off a bed. And, the prevention of the wandering about at night is a heavy load for the caregiver because they can’t take an adequate sleep. Therefore, we developed a system for recognition of the patient’s getting out of bed using Kinect. In this study, we set up Kinect several meters away from a bed. We extract bed frame from depth value using Kinect. In addition, we estimate the subject state from change of depth value on bed frame. We need to set up value of bed size and distance between Kinect and bed for to extract bed frame without being affected by object around the bed. This system can recognizes the subject state of “Getting out of Bed”,“Lying”,“Sitting” and “Danger of Falling”. And, we could confirm that the system work without fault in the case of bed cover and pillow using.
