1. A method of evaluating an object disposed on an upper surface of an object holder, the method comprising: acquiring at least one first frame representing a captured portion of the object, while the object holder is positioned at each of a plurality of locations; acquiring at least one second frame representing a captured portion of at least one other surface of the object holder while the object holder is positioned at each of the plurality of locations, wherein the at least one other surface of the object holder is disposed in space lower than the upper surface of the object holder; and determining at least one spatial characteristic associated with the captured portion of the object, based on at least one of the acquired frames.