Patent ID: 6721451
Filing Date: 2004-04-13
Classification: G06K

Abstract:
Apparatus for reading a document image including a plurality of character groups, each of the character groups having a logical element which indicates a particular logical meaning of the character group, said apparatus comprises:means for memorizing keywords with relation to the logical element of the document image; means for storing image data segments of the document image, each of the image data segments corresponding to each of the character groups having the logical element; means for selecting one of the image data segments; means for sequentially identifying each of the character groups in the image data segments with a corresponding one of the keywords extracted from said memorizing means; and means for sequentially applying one of tags to each of the character groups, the tags denoting a particular logical meaning related to one of the keywords, wherein said identifying means further comprises means for storing identification data which has both of every one of the character groups and every one of the corresponding tags in each of lines, the line composed of the character group and being a row of words, numbers, or other symbols on a page of writing or in print; and means for, when the line includes only one tag of the tags as a result of the identification data and when the one tag is applied to a character group that are arranged in a part of the line, replacing the one tag with another tag applied to a new character group that are arranged in all of the line, the another tag having the same logical meaning as the one tag.