1. Method for rectifying at least one target object in a captured imagery, said method comprising: using a processor to perform steps comprising: locating a reference region lying in a common plane with an image of said at least one target object, said reference region representing an image of a reference object that is defined by a bounding shape having geometry and dimensions that are known to said processor, where said image of said at least one target object lies outside of said bounding shape; and rectifying an image of said common plane in accordance with said geometry and dimensions of said bounding shape.