1. A method of determining a number of thermally distinguishable objects in the living body, the method comprising: using a computer for obtaining a synthesized thermospatial image defined over a three-dimensional spatial representation of the living body and having thermal data associated with a surface of said three-dimensional spatial representation, said thermal data being characterized by closed isothermal contours surrounding at least one thermally distinguished areas on said surface; using a computer for determining an internal three-dimensional thermally distinguishable region in the living body based on said synthesized thermospatial image; analyzing said three-dimensional spatial representation so as to define a non-planar boundary within said three-dimensional spatial representation, wherein points residing on one side of said boundary correspond to a single thermally distinguished area on said surface while points residing on another side of said boundary correspond to a plurality of thermally distinguished areas on said surface; and comparing said internal three-dimensional thermally distinguishable region with said boundary so as to determine the number of thermally distinguishable objects in the living body.