2.2. System configuration of bedside location system
Figure 1 shows the system configuration of our newly developed bedside location system. To acquire 3D location
information, this system utilizes a Microsoft Kinect sensor. As can be seen in the figure, we installed the system on
the ceiling so that the plane of the bed was within the measurement area of the Kinect depth sensor. The developed
system provides two functions: a monitoring space registration function and a head detection function that is based
on depth information.