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Patent Searching and Data


Title:
USER PLOTTING SURROUNDING AREA EXTRACTING METHOD FOR SCANNED AND READ DOCUMENT
Document Type and Number:
Japanese Patent JP2001195598
Kind Code:
A
Abstract:

To provide a method for extracting an area surrounding user plotting in a scanned and read document by a computer.

Link components are extracted and the boundary box of respective link components is calculated so that the scanned and read document can be analyzed. A candidate object is limited by erasing the link components expressing a character string, half tone and characters overlapped with the user plotting surrounded area. The contour of the candidate object is prepared and the feature point of the contour including an intersection with the other object is calculated. Afterwards, the surrounding area of user plotting is reconfigured by limiting a contour line segment belonging to the same enclosure. On the basis of an area occupied by the contour and the size of the contour, the user plotting enclosure is identified through series of tests. The enclosure is further limited by removing or ignoring an opened circular arc. After the user plotting enclosure is identified, an image inside the boundary box of the contour is extracted and optical recognition is arbitrarily executed to that extracted image.


Inventors:
JINHON KUO
KANAI JUNICHI
Application Number:
JP2000000359079
Publication Date:
July 19, 2001
Filing Date:
November 27, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC CORP (US)
International Classes:
G06F17/21; G06F17/24; G06K9/20; G06T7/60; (IPC1-7): G06T7/60; G06F17/21; G06F17/24
Attorney, Agent or Firm:
Hiroshi Maeda (7 outside)