To provide an information processing device that can correctly detect a state of a person on a bed.SOLUTION: An information processing device (a monitor server) comprises: distance image acquisition means that acquires a distance image of a prescribed portion including a sleeping site； detection means that detects a pair of a head part and a trunk part of a person within the distance image； and determination means that determines that the pair of the head part and the trunk part is the person in accordance with a movement situation of the detected pair of the head part and the trunk part. Further, the determination means is configured to determine a pose of the person in accordance with a position relationship between the head part and the trunk part determined as the person and forming the pair.SELECTED DRAWING: Figure 2【課題】ベッド上の人物の状態をより正確に検出することができる情報処理装置を提供する。【解決手段】情報処理装置は、寝床を含む所定箇所の距離画像を取得する距離画像取得手段と、距離画像に基づいて、当該距離画像内の人物の頭部と胴体部との対を検出する検出手段と、検出した頭部と胴体部との対の移動状況に応じて、頭部と胴体部との対が人物であることを判定する判定手段と、を備える。また、判定手段は、人物と判定した対となる頭部と胴体部との位置関係に応じて、人物の姿勢を判定する。【選択図】図２
