Image analysis – Image segmentation – Distinguishing text from other regions
Patent
1998-06-02
1999-05-25
Tran, Phuoc
Image analysis
Image segmentation
Distinguishing text from other regions
382224, 382317, G06K 934
Patent
active
059076313
ABSTRACT:
An extracting step extracts text regions from an input document image. A classifying step classifies the text regions into in-order reading regions to be successively read in the predetermined order and different-attribute regions. A detecting step detects the construction of the in-order reading regions. A determining step determines the reading order, in which the in-order reading regions are to be read, using the construction. The detecting step detects the construction in a manner that is the same whether the input document image comprises a vertically typeset document or a horizontally typeset document. The detecting step further includes a tree graph formation step c-1) forming a tree graph representing the construction including nodes respectively representing the in-order reading regions.
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The Japanese Book Information Processing Handbook first published on May 1989, edited by the Information Processing Society, published by Ohm, p. 26, Fig. 1.9 Tree Tracing Method, (a) Preorder.
Ricoh & Company, Ltd.
Tran Phuoc
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