PROBLEM TO BE SOLVED: To provide a watching apparatus which can properly determine a state of a person on a bed.SOLUTION: A watching apparatus includes: a distance measurement unit which measures distances to a subject at a plurality of spots, to generate distance images having pixels with luminance values indicating distances to the subject a three-dimensional processing unit which determines three-dimensional coordinates of the subject, on the basis of the distance images a three-dimensional block generation unit which executes labeling processing to apply the same label to three-dimensional coordinates located within a predetermined range of distance, on the basis of the three-dimensional coordinates, to generate a three-dimensional block a moving-body area detection unit which calculates a difference in distance between two-frame distance images having a distance of a predetermined time, by pixel, to detect an area formed of pixels having the difference equal to or larger than a predetermined threshold, as a moving-body area a moving-body block extraction unit which extracts an area in the three-dimensional block corresponding to the moving-body area, as a moving-body block and a state determination unit which determines a state of a person, on the basis of a physical quantity on the moving-body block, to issue a determination result to the outside.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】ベッド上の人物の状態を正確に判断することのできる見守り装置を提供する。【解決手段】被写体までの距離を複数の箇所で測定することにより、各画素の輝度値が被写体までの距離を示す距離画像を生成する距離測定部と、距離画像に基づいて、被写体の3次元座標を決定する3次元処理部と、3次元座標に基づいて、所定の距離範囲内にある3次元座標同士に同一のラベルを付けるラベリング処理を施すことで、3次元ブロックを生成する3次元ブロック生成部と、所定時間離れた2フレームの距離画像間で、画素毎に距離の差分を算出し、当該差分が所定の閾値以上の画素からなる領域を移動体領域として検出する移動体領域検出部と、移動体領域に対応する3次元ブロック内の領域を移動体ブロックとして抽出する移動体ブロック抽出部と、移動体ブロックに係る物理量に基づいて、人物の状況を判断し、判断結果を外部に通知する状況判断部とを備える。【選択図】図2
