BIO-IMAGE RETRIEVAL METHOD USING CHARACTERISTIC EDGE BLOCK OF EDGE HISTOGRAM DESCRIPTOR AND APPARATUS AT THE SAME

摘要

A method and an apparatus for bio-image retrieval using the characteristic edge block of an edge histogram descriptor are provided to generate a characteristic vector using the characteristic edge block of an image and local dispersion and perform similarity comparison using the characteristic vector, thereby providing the location information of a main object existing in the image and improving search performance by reducing the error value of similarity comparison caused by the comparison of an edge block with no characteristic. A similarity comparison process for bio-image retrieval comprises the following steps of: collecting original bio-images and constructing a DB(Database) with bio-images generated by conversion processes(S501); storing the local and global edge histogram of reference images inputted to the DB in the DB(S502); generating a characteristic vector for an inquiry image(S503,S504); selecting the same block of the reference image existing in the DB for the selected characteristic edge block of the inquiry image to generate the characteristic vector of the reference image and accumulating the absolute error of two characteristic vector values of the inquiry image and the reference image(S505,S506); and arranging the reference images in an order in which the size of the sum of accumulated errors is arranged in a small size and providing parent reference images to a search system user as result(S507).