| 摘要 |
Disclosed is a fall detection device and the like such that even when a video with low frame rate is used, and a CPU that demonstrates inferior performance is employed, it is possible to detect, with a higher accuracy, that a human body has fallen.;This fall detection device 1 comprises includes a height detection unit 2 detects whether or not the height of a human body decreases, an appearance feature extraction unit 3 that extracts an appearance feature, an appearance detection unit 5 that determines whether or not the human body has fallen and a moving distance detection unit 4 that detects when the moving distance is small, that the human body to be detected has fallen. |
| 主权项 |
1. A fall detection device comprising:
a height detection unit that detects whether or not a height of a human body to be detected decreases, by comparing, on the basis of a human body image including a partial image indicating the human body, position coordinate information indicating a position on coordinate of the partial image and size information indicating the size of the human body indicated on the partial image, height information included in the size information and height information included in size information acquired in the past; an appearance feature extraction unit that extracts, when the height decreases, an appearance feature on the basis of appearance of the human body image; an appearance detection unit that determines, on the basis of a result obtained by making reference to a first appearance dictionary on the basis of the appearance feature, whether or not the human body has fallen; and a moving distance detection unit that calculates, when it is determined that there results fallen state, a moving distance of the partial image included in the human body image on the basis of the position coordinate information and position coordinate information acquired in the past, compares the moving distance and a threshold value, to detect, on the basis of the compared result, whether or not the moving distance of the partial image indicating the human body is smaller than the threshold value, when the moving distance is small, and detects that the human body included in the human body image has fallen. |
