US Patent 10937165 Comparison of relevant portions of images

A computing system provides a reference image and a current image representing a territory at different times. The computing system determines a partition of the reference image into a first relevant portion and a first non-relevant portion and of the current image into a second relevant portion and a second non-relevant portion according to a partitioning rule. The computing system compares the second relevant portion of the current image with the first relevant portion of the reference image for determining one or more different regions of the current image with respect to the reference image. The computing system determines one or more critical regions of the current image corresponding to the one or more different regions according to a criticality rule. The computing system provides a notification based on the one or more critical regions for use in enforcing land use controls.