The invention detects a change in a subject by detecting the subject from an image, acquiring a feature quantity distribution that indicates shape information of the detected subject, accumulating the shape information that is indicated by the acquired feature quantity distribution and comparing the shape information a predetermined period of time before with the current shape information by using the accumulated shape information. Here, the invention acquires the feature quantity distribution of the subject from a processing target area extracted from an image area that includes the subject. The invention detects a change in the subject by using accumulated shape change information acquired from the shape information. The invention detects a change in the subject by using averaged shape change information obtained by averaging the shape change information.
OBJECT CHANGE DETECTION SYSTEM AND OBJECT CHANGE DETECTION METHOD
OBJEKTÄNDERUNG SYSTEM UND VERFAHREN ZUR ERKENNUNG VON OBJEKTÄNDERUNG
SYSTEME DE DÉTECTION DE CHANGEMENT DE OBJET ET PROCÉDÉ DE DÉTECTION DE CHANGEMENT DE OBJET
2020-05-06
Patent
Electronic Resource
English
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