Suppressing ambiguities, matches validation

and interpretation

1) To solve the ambiguities of kind M(1,c) , M(i,1) and M(i,c) we choose the matched pairs having the lowest value w.r.t. the defined criterion in order to get only matches of kind M(1,1).

2) The matches M(1,1) are validated depending on the value of the criterion. Indeed, all the bi-univoque matches are not valid. We can have a good value for one attribute and a bad one for another as for the following cases:

Result interpretation:

• non validation = bad detection on the image, too important generalization on the map or non updated map.
• non matched cartographic section = non detection on the image or object disappearance.
• non matched image section = false alarm on the image or appearance of a new object unreferenced on the map.

November 1998