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:
Oct. 21, 2003
Filed:
Jan. 09, 1998
Eiji Takasu, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
It is an object of the invention to improve output precision of a final recognition result by further obtaining and applying a forward-chain probability in addition to a backward-chain probability in a Bi-gram statistic process, as a post-processing in the case where a plurality of candidate characters are outputted to one input pattern as a result of character recognition. An apparatus according to the invention has a backward-chain dictionary and a forward-chain dictionary of characters, obtains a chain probability from the i-th character to the (i+1)th character by using the backward-chain dictionary, further obtains a chain probability from the (i+1)th character to the i-th character by using the forward-chain dictionary, and selects the character of the final output result from a plurality of candidate characters on the basis of a value obtained by unifying those chain probabilities.