IMAGE PROCESSING APPARATUS, METHOD AND PROGRAM, AND MONITORING SYSTEM

摘要

PROBLEM TO BE SOLVED: To grasp an action state of a monitoring object person in a certain period of time.

SOLUTION: A brief background generation unit 123 generates a brief background image from a captured image of a plurality of frames thinned-out by the number of frames set such that moved parts of a stayer are not present at a same position in the captured image between the frames when the stayer moves; a background generation unit 124 generates a background image from the brief background image of a plurality of the frames thinned-out by the number of frames set such that the stayer is not present at a same position in the brief background image between the frames; and a change detection unit 125 generates a change extraction image from a difference between the brief background image and the captured image. A continuation detection unit 126 generates a continuation detection image from a difference between the brief background image and the background image, and a stayer detection unit 122 calculates information showing a state of the stayer, a subject to be monitored, from the change extraction image and the continuation detection image.

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