1. A method of organizing identifying characteristics of a patterned object used to verify the patterned object, the method comprising: matching identifying characteristics of the patterned object in at least one set with identifying characteristics of the patterned object in a candidate set, wherein the matching includes a loose matching stage and a strict matching stage; and adjusting a confidence value of each identifying characteristic in the at least one set based on results of the matching, wherein the confidence value is increased by a first value if a match occurs in the loose matching stage and by a second value larger than the first value if a match occurs in the strict matching stage.