Apparatus for searching document images using a result of...

Image analysis – Pattern recognition – Feature extraction

Reexamination Certificate

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Details

C382S176000, C382S229000, C382S306000, C707S793000, C707S793000

Reexamination Certificate

active

07142716

ABSTRACT:
A document image search apparatus generates a text by performing the character recognition of a document image and determines a re-process scope. Then, the apparatus generates a candidate character lattice from the re-recognition result of the re-process scope, generates character strings from the candidate character lattice and adds the character strings to the text. Then, the apparatus performs index search using the text with the character strings added.

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Hiroshi Murase, et al., “Segmentation and Recognition of Hand-Written Character String Using Linguistic Information”, IEICE Transactions '86/9vol. J69-D, No. 9., pp. 1292-1301 (Partial translation (3.4 “Search for Kth minimum cost path via a dynamic programming approach”, pp. 1296-1297)).

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