DETECTION METHODS AND DEVICES FOR DETECTING IF PERSON HAS FALLEN AND PICK-UP OR PUT-BACK BEHAVIOR OF PERSON

The present invention discloses a detection method and device for detecting if a person has fallen on premises and a detection method and device for detecting a pick-up or put-back behavior of a person in front of a shelf. The method for detecting if a person has fallen comprises the steps: calibrating cameras, so as to have a suitable vertical vector in a field of view of each camera; obtaining image data comprising a person on premises by means of least a portion of the cameras, and extracting from the image data key point data of the skeleton of the person; estimating a personal verticality of the person by means of using the key point data; calculating vertical angles of the person on the basis of the personal verticality and the vertical vectors in the field of view of at least a portion of the cameras; aggregating all the vertical angles of the person in the fields of view of at least a portion of the cameras at some moment to obtain a final vertical angle of the person; and determining whether the pers