“…Next, [8][9][10] monitored user behavior in a care room by capturing users or detecting a bed. In Nari et al [8], a care room was divided into three zones, namely, relaxing, walking, and toilet zones; next, the system identified the location of the elderly and monitored their behaviors (e.g., sitting, standing, and lying). In addition, [9,10] detected a bed in a care room by capturing RGB images from multiple views and capturing videos using a monocular camera, respectively.…”