Patent ID: 6330360
Filing Date: 2001-12-11
Classification: G06K

Abstract:
An image processing apparatus for extracting ruled lines constructing columns present in an entered original image, comprising:storage means for storing ruled-line information related to each image of a plurality of images, each image having a different format of a predetermined organization, wherein the ruled-line information includes key ruled-line information of key ruled lines used for identifying a format of the entered original image and inferring information used for inferring positions of ruled lines having a relative positional relation to the key ruled lines based on the format and the key ruled-line information;first extraction means for extracting key ruled-line information of key ruled lines satisfying a predetermined condition from the entered original image based on the feature of the original image;identification means for identifying a format of the entered original image by comparing the extracted key ruled-line information with the stored key ruled-line information; andsecond extraction means for inferring the positions of ruled lines of the entered original image by using the inferring information according to the identified format and the extracted key ruled-line information, and extracting the rules lines present at the inferred positions.