From the image information, 2D operators are determined for generating 130 3D point samples 3, and {HEAD ~ the image information} 2 is then associated with {TAIL ~ corresponding 3D point samples} 3, preferably stored as a hierarchy 20 in a memory 
is associated with
From the image information , 2D operators are determined for generating 130 3D point samples 3 , and { HEAD ~ the image information } 2 is then associated with { TAIL ~ corresponding 3D point samples } 3 , preferably stored as a hierarchy 20 in a memory
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH