13. The system as recited in claim 12 , wherein the comparator employs a metric to compare features extracted from the plurality of target images with features extracted from the plurality of candidate images.
13. The system as recited in claim 12 , wherein the comparator employs a metric to compare features extracted from the plurality of target images with features extracted from the plurality of candidate images. 14. The system as recited in claim 13 , wherein the metric includes at least one of a similarity metric and a distance metric.