a method of analyzing images over time is provided herein . the method includes : capturing a plurality of images each associated with specified objects in specified locations such that a specified area is covered ; specifying regions of interest in each of the captured images ; repeating the capturing with at least one of : a different location , a different orientation , and a different timing such that the captured images are associated with the specified covered area ; and comparing the captured imaged produced in the capturing with the captured imaged produced in the repeating of the capturing to yield comparison between the captured objects by comparing specified roi .