The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1990
Filed:
May. 02, 1988
Masahiro Nakamura, Yokohama, JP;
Ricoh Company, Ltd., , JP;
Abstract
A character region extracting method adapted to character recognition comprises the following three steps. The first step is to segmentate a first region (BL1) from a document image by extracting projection of the document image in a first direction parallel to a character string and detecting a range in which the projection is continuous in a second direction perpendicular to the first direction. The range defines the first region. The second step is to segmentate a second region (sBL1) from the first region by extracting projection of the first region in the second direction and detecting a range in which the projection is continuous in the first direction. The range defines the second region. The third step is to segmentate a third region (BL2) from the second region by extracting projection of the second region in the first direction and detecting a range in which the projection is continuous in the second direction. The range defines the third region. The third region may be joined together so as to form a fourth region containing characters or a character string.