Image analysis – Image segmentation – Distinguishing text from other regions
Patent
1995-04-04
1997-04-01
Boudreau, Leo
Image analysis
Image segmentation
Distinguishing text from other regions
382194, 358462, G06K 900
Patent
active
056174853
ABSTRACT:
An image region segmentation system includes a first detection part for detecting a candidate region for a text region within an image, a second detection part for detecting a white region within the image by carrying out a pattern matching of a matrix including a pixel of the image with predetermined matrix patterns for a set of successive white pixels, and a discrimination part for detecting whether or not the candidate region detected by the first detection part is a text region by checking if a white region is detected in a neighborhood of the detected candidate region.
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Digital Image Processing, Gonzalez et al, 1977 pp. 333-350.
Nobuji Tetsutani et al, "Bilevel Rendition Method for Documents Including Gray-Scale and Bilevel Image," Institute of Electronics and Communication Engineers of Japan (IECEJ), 1984, vol. J67-B, No. 7, pp. 781-788.
Imao Kaoru
Ohuchi Satoshi
Boudreau Leo
Kelley Christopher S.
Ricoh & Company, Ltd.
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