16. The computing device of claim 15 wherein the classifier score is further based on a distance score indicating a likelihood of the target object matching an object other than the purported object.
16. The computing device of claim 15 wherein the classifier score is further based on a distance score indicating a likelihood of the target object matching an object other than the purported object. 17. The computing device of claim 16 wherein a distance score is based on distance between code vectors derived from classifier specific-feature vectors.