Patent ID: 6694049
Filing Date: 2004-02-17
Classification: G06K,G06N

Abstract:
A multimode invariant image processor for classifying patterns in an image, the processor comprising:a retina portion for receiving the image and generating in response image gradient information; a nonlinear processing portion for processing the image gradient information to generate image feature vectors representing image features in the image wherein the nonlinear processing portion comprises a series of neural director layers to aid in discrimination between similar patterns in the image, each layer having at least one neural director, the neural directors in a first of the layers receiving the gradient information from the retina portion and generating in response respective feature vectors each having a dimensionality at least as great as the received gradient information, each successive neural director layer receiving feature vectors generated by neural directors in each previous neural director layer and generating in response respective feature vectors each having a dimensionality at least as great as the received feature vector; a convergence processing portion for processing the image feature vectors to generate common feature information; and a classifier portion for receiving the common feature information and generating in response classification information indicating the likelihood that selected features are present in the image.