Patent ID: 8749626

Claim:
A safe nursing system comprising: a control unit programmed to monitor a movement of a patient on a bed, the control unit including: an image capturing unit disposed in a position from which an image including a side of a top surface of the bed can be captured; an image capturing control unit programmed to obtain image data captured by the image capturing unit; a calculation unit that specifies feature points in an image of the patient in the image data obtained by the image capturing control unit, calculates a value of a predetermined index of the feature points used to determine a predetermined movement in the patient, and calculates motion vectors of the feature points; a setting unit that sets a predetermined condition to determine the predetermined movement based on a region of the bed in the image data obtained by the image capturing control unit, wherein said predetermined condition is set as a cumulative percentage of the motion vectors passing a predetermined borderline to be greater than or equal to a predetermined percentage; a determination unit that determines the predetermined movement based on the value calculated by the calculation unit and the predetermined condition set by the setting unit; and an output unit that outputs information indicating that the patient has performed the predetermined movement under the condition that the determination unit has determined that the predetermined movement has been performed.