Image analysis – Image segmentation
Reexamination Certificate
2005-07-12
2005-07-12
Johnson, Timothy M. (Department: 2625)
Image analysis
Image segmentation
C382S199000, C382S202000
Reexamination Certificate
active
06917706
ABSTRACT:
A ruled line extracting apparatus obtains circumscribed rectangles of pixel concatenation regions included in an input pattern, and calculates the most frequent value of their heights. Additionally, the apparatus integrates segments by ignoring a wild card segment, and calculates the most frequent value of height/width of extracted straight lines and segments structuring the straight line. Next, it performs a process for integrating/deleting straight lines using each threshold value based on the highest frequency value. Then, it checks/deletes a straight line according to a distribution of black pixels around the straight line, and recognizes the remaining straight lines as ruled line candidates.
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Fujitsu Limited
Johnson Timothy M.
Staas & Halsey , LLP
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