Patent ID: 8488023
Filing Date: 2013-07-16
Classification: G06K,G06T,H04N

Abstract:
1. A method of recognizing a facial expression, comprising: using a processor; acquiring a sequence of digital images; detecting a facial region within a first digital image; applying a facial model, comprising both shape and texture components, to said facial region to obtain a first detailed match to the facial region; applying a feature model, comprising both shape and texture components, to a feature within the facial region to obtain a first detailed match to said feature; adjusting the facial model, responsive to the first detailed match of the second model to said feature, to obtain an improved match of the facial model to the facial region; adjusting the feature model, responsive to the improved match of the facial model to said facial region, to obtain an improved match to the feature; extracting principal shape components from both the facial model and the feature model; and characterizing said principal shape components to determine a best matching facial expression of a discrete set of facial expressions.