23.2.2.2.4 Text vs. Non-Text Regions

Ochi, H.[Hiroshi], Tetsutani, N.[Nobuji],
Method and apparatus for gray level signal processing,
US_Patent4,547,811, Oct 15, 1985
WWW Version. BibRef 8510

Kannapell, H.N.[Henry N.], Nietfeld, P.G.[Paul G.],
Text/continuous tone image decision processor,
US_Patent4,577,235, Mar 18, 1986
WWW Version. BibRef 8603

Sakano, Y.[Yukio],
Digital copier with document image region decision device,
US_Patent4,707,745, Nov 17, 1987
WWW Version. BibRef 8711

Smith, C.M.[Craig M.],
Image discrimination,
US_Patent4,856,075, Aug 8, 1989
WWW Version. BibRef 8908
And:
Image discrimination with continuous tone area thinning,
US_Patent4,862,283, Aug 29, 1989
WWW Version. Text vs. image BibRef

Bloomberg, D.S.[Dan S.], Sang, Jr., H.W.[Henry W.], Dasari, L.[Lakshmi],
Detection of highlighted regions,
US_Patent5,048,109, Sep 10, 1991
WWW Version. BibRef 9109
And: US_Patent5,272,764, Dec 21, 1993
WWW Version. BibRef
And: US_Patent5,619,592, Apr 8, 1997
WWW Version. BibRef

Bloomberg, D.S.[Dan S.],
Segmentation of text and graphics,
US_Patent5,202,933, Apr 13, 1993
WWW Version. BibRef 9304
And:
Identification and segmentation of finely textured and solid regions of binary images,
US_Patent5,065,437, Nov 12, 1991
WWW Version. BibRef

Bloomberg, D.S.[Dan S.], Crocca, W.T.[William T.],
Identification, characterization, and segmentation of Halftone or stippled regions of binary images by growing a seed to a clipping mask,
US_Patent5,131,049, Jul 14, 1992
WWW Version. BibRef 9207

Kowalski, R.P.[Robert P.], Bloomberg, D.S.[Dan S.],
High speed halftone detection technique,
US_Patent5,193,122, Mar 9, 1993
WWW Version. BibRef 9303

Murez, J.D.[James D.],
Optical character classification,
US_Patent5,579,407, Nov 26, 1996
WWW Version. Highlighter areas BibRef 9611

Kanno, H.[Hiroki], Yoneda, H.[Hitoshi], Machida, H.[Hironobu],
Image binarization apparatus,
US_Patent4,998,122, Mar 5, 1991
WWW Version. BibRef 9103

Eschbach, R.[Reiner],
Content-based resolution conversion of color documents,
US_Patent5,278,670, Jan 11, 1994
WWW Version. BibRef 9401

Kang, M.S.[Min S.],
System and method for automatically distinguishing between graphic information and text information of image data,
US_Patent5,375,197, Dec 20, 1994
WWW Version. BibRef 9412

Le, D.X., Thoma, G.R., Wechsler, H.,
Classification of Binary Document Images into Textual or Nontextual Data Blocks Using Neural-Network Models,
MVA(8), No. 5, 1995, pp. 289-304.
HTML Version. BibRef 9500
Earlier:
Automated Borders Detection and Adaptive Segmentation for Binary Document Images,
ICPR96(III: 737-741).
IEEE DOI Link 9608
(National Library of Medicine, USA) BibRef

Tanaka, K.[Kazuyoshi], Matsunawa, M.[Masahiko], Katoh, H.[Hiroshi],
Image processor with improved discrimination between character image and tonal image,
US_Patent5,001,576, Mar 19, 1991
WWW Version. BibRef 9103

Wang, T.M.[Te-Mei], Wang, P.C.[Po-Chih], Huang, K.L.[King-Lung],
Text/image separation method,
US_Patent5,379,130, January 3, 1995.
WWW Version. BibRef 9501

Nelson, B.K.[Brett K.],
Image/text filtering system and method,
US_Patent5,038,381, Aug 6, 1991
WWW Version. BibRef 9108

Fan, K.C., Wang, L.S., Tu, Y.T.,
Classification of Machine Printed and Handwritten Texts Using Character Block Layout Variance,
PR(31), No. 9, September 1998, pp. 1275-1284.
WWW Version. 9808
BibRef

Suzuki, Y.[Yuzuru],
Image area discriminating system for an image processing apparatus,
US_Patent5,296,939, Mar 22, 1994
WWW Version. BibRef 9403

Suzuki, Y.[Yuzuru], Hibi, Y.[Yoshiharu],
Image-area identifying system for a color image processing apparatus,
US_Patent5,768,403, Jun 16, 1998
WWW Version. BibRef 9806

Kuwabara, N.[Nobuaki], Endou, T.[Takahisa], Suzuki, Y.[Yasunobu],
Image processing apparatus capable of processing halftone image data,
US_Patent5,309,254, May 3, 1994
WWW Version. BibRef 9405

Ishida, Y.[Yoshihiro], Koga, S.[Shinichiro], Shigeeda, N.[Nobuyuki],
Image processing method and apparatus using separate processing for pseudohalf tone area,
US_Patent5,832,141, Nov 3, 1998
WWW Version. BibRef 9811

Lee, F.W.[Fu-Wen], Mao, C.L.[Ching-Lung],
Method of separating text and graphs in digital image data,
US_Patent7,313,275, Dec 25, 2007
WWW Version. BibRef 0712

Journet, N.[Nicholas], Ramel, J.Y.[Jean-Yves], Mullot, R.[Rémy], Eglin, V.[Véronique],
Document image characterization using a multiresolution analysis of the texture: application to old documents,
IJDAR(11), No. 1, October 2008, pp. xx-yy.
Springer DOI Link 0810
BibRef
Earlier:
A Proposition of Retrieval Tools for Historical Document Images Libraries,
ICDAR07(1053-1057).
IEEE DOI Link 0709
BibRef
Earlier: A1, A3, A4, A2:
Dedicated Texture Based Tools for Characterisation of Old Books,
DIAL06(60-69).
IEEE DOI Link 0604
BibRef
Earlier: A1, A4, A2, A3:
Text/graphic labelling of ancient printed documents,
ICDAR05(II: 1010-1014).
IEEE DOI Link 0508
BibRef

Lan, M.[Man], Tan, C.L.[Chew Lim], Su, J.[Jian], Lu, Y.[Yue],
Supervised and Traditional Term Weighting Methods for Automatic Text Categorization,
PAMI(31), No. 4, April 2009, pp. 721-735.
IEEE DOI Link 0903
BibRef

Guo, J.K., Ma, M.Y.,
Separating handwritten material from machine printed text using hidden Markov models,
ICDAR01(439-443).
IEEE DOI Link 0109
BibRef

Olivier, D., Dominique, B.,
A robust and multiscale document image segmentation for block line/text line structures extraction,
ICPR94(A:306-310).
IEEE DOI Link 9410
BibRef

Chapter on OCR, Document Analysis and Character Recognition Systems continues in
Separate Images and Graphics from Text .