Patent ID: 6526167
Filing Date: 2003-02-25
Classification: G06K,G06T

Abstract:
An image processing apparatus comprising:image difference detector means for comparing pixel values of input image data and image data obtained by changing the input image data so that the image represented by the input image data is shifted to generate a differential image; computation means for computing a centroid of said differential image between said input image data and said image data obtained by changing the input image data, wherein said computation means utilizes the changed pixels and computes the position of said pixel corresponding to the centroid of said changed pixels by computing the arithmetic means of the values of all of said changed pixels obtained by said image difference detector means; collection means for collecting information of image data of a peripheral area about the centroid obtained by said computation means; forming means for forming a category from information collected by said collection means and employing a feature learning process that performs plurality-to-one mapping of an image from a plurality of collected feature points of said peripheral areas about a plurality of centroids to form said category; and learning means for learning a new centroid position in accordance with said information of said category formed by said forming means.