VERFAHREN UND VORRICHTUNG ZUR BILDVERARBEITUNG

摘要

PCT No. PCT/GB91/01183 Sec. 371 Date Mar. 4, 1993 Sec. 102(e) Date Mar. 4, 1993 PCT Filed Jul. 17, 1991 PCT Pub. No. WO92/02000 PCT Pub. Date Feb. 6, 1992A method of processing an image including the steps of: locating within the image the position of at least one predetermined feature; extracting from the image data representing each feature; and calculating for each feature a feature vector representing the position of the image data of the feature in an N-dimensional space, such space being defined by a plurality of reference vectors each of which is an eigenvector of a training set of like features in which the image data of each feature is modified to normalize the shape of each feature thereby to reduce its deviation from a predetermined standard shape of the feature, which step is carried out before calculating the corresponding feature vector.