Method for determining change in object e.g. machine, involves determining displacement vector between initial coordinates in predecessor/reference image and coordinates of extreme similarity measure of local gray value patterns

摘要

The method involves storing the successively captured digital images (4) of object (1). The consecutive grayscale images among digital images are stored as successor/comparison images. A descriptor is identified by applying an operator on local gray value pattern of gray-scale images. A similarity measure between the descriptors is determined. The displacement vector is determined as vector between initial coordinates in predecessor/reference image and coordinates of extreme similarity measure of local gray value patterns of predecessor and successor. Independent claims are included for the following: (1) a device for determining changes in target object; (2) computer program for determining changes in target object; and (3) computer program product for determining changes in target object.