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Patent Searching and Data


Title:
METHOD AND SYSTEM FOR AUTOMATICALLY LOCATING TEXT AREAS IN AN IMAGE
Document Type and Number:
WIPO Patent Application WO2004013802
Kind Code:
A3
Abstract:
Disclosed is a system for automatically locating text areas in a digital image, comprising a unit (150, 160) that converts an input digital image into a binary image, a unit (170) which locates potential text areas that are applied to the binary image, and a unit (180) which selects actual text areas highlighted by the locating unit (170). The unit (170) locating potential text areas is advantageously provided with means for applying at least one morphological filter to the binary image that results from the conversion of the digital image into a binary image. The selecting unit (180) carries out a method for dividing the intensity of gray levels applied to the image supplied by a processing unit (160) that is included in the unit (150, 160) converting the digital image into a binary image.

Inventors:
MAHDI WALID (FR)
ARDABILIAN MOHSEN (FR)
CHEN LIMING (FR)
Application Number:
FR0302406W
Publication Date:
April 08, 2004
Filing Date:
July 30, 2003
Export Citation:
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Assignee:
ECOLE CENTRALE DE LYON
MAHDI, WALID
ARDABILIAN, MOHSEN
CHEN, LIMING
International Classes:
G06K9/32; (IPC1-7): G06K9/32
Other References:
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YU ZHONG ET AL: "Automatic caption localization in compressed video" IMAGE PROCESSING, 1999. ICIP 99. PROCEEDINGS. 1999 INTERNATIONAL CONFERENCE ON KOBE, JAPAN 24-28 OCT. 1999, PISCATAWAY, NJ, USA,IEEE, US, 24 octobre 1999 (1999-10-24), pages 96-100, XP010368958 ISBN: 0-7803-5467-2
BLOOMBERG D S ET AL: "Document image summarization without OCR" PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) LAUSANNE, SEPT. 16 - 19, 1996, NEW YORK, IEEE, US, vol. 1, 16 septembre 1996 (1996-09-16), pages 229-232, XP010202636 ISBN: 0-7803-3259-8
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LIANG J ET AL: "Document layout structure extraction using bounding boxes of different entitles" APPLICATIONS OF COMPUTER VISION, 1996. WACV '96., PROCEEDINGS 3RD IEEE WORKSHOP ON SARASOTA, FL, USA 2-4 DEC. 1996, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 2 d├ęcembre 1996 (1996-12-02), pages 278-283, XP010206444 ISBN: 0-8186-7620-5
WERNICKE A ET AL: "On the segmentation of text in videos" IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, XX, XX, vol. 3, 30 juillet 2000 (2000-07-30), pages 1511-1514, XP002178986
DEFORGES O ET AL: "Segmentation d'images de documents par une approche multir├ęsolution" TRAITEMENT DU SIGNAL, 1995, GRETSI, FRANCE, vol. 12, no. 6, pages 527-539, XP008011651 ISSN: 0765-0019
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