Image analysis – Pattern recognition – Feature extraction
Reexamination Certificate
2005-08-09
2005-08-09
Couso, Yon J. (Department: 2625)
Image analysis
Pattern recognition
Feature extraction
C382S173000
Reexamination Certificate
active
06928188
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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Couso Yon J.
Fujitsu Limited
Staas & Halsey , LLP
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