Patent ID: 8977011
Filing Date: 2015-03-10
Classification: G06K

Abstract:
1. A method of determining face recognition profiles for each of a group of at least two persons comprising analyzing a set of images where more than one face image of each person is available, comprising: a) determining with a multi-classifier face detector that a face region within a digital image has above a threshold probability of corresponding to a first person of a group of persons; b) recording a probability score for each classifier stage of the multi-classifier face detector, along with an overall probability score, including associating the probability scores with the first person; c) repeating (a) and (b) for one or more further images each containing a face region that has above the threshold probability of corresponding to the first person; d) analyzing the probability scores for each classifier and the overall probability score, including determining a mean and variance for each classifier for the first person; e) repeating steps (a) through (d) for one or more further persons of the group of persons; f) determining a sub-set of classifiers which best differentiates between the first person and the one or more further persons of the group; and g) storing the sub-set of classifiers including associating said sub-set of classifiers with the first person as a recognition profile.