Image analysis – Histogram processing – With pattern recognition or classification
Reexamination Certificate
2006-01-11
2010-06-15
Le, Vu (Department: 2624)
Image analysis
Histogram processing
With pattern recognition or classification
C382S294000, C382S218000
Reexamination Certificate
active
07738700
ABSTRACT:
The horizontal and vertical projection histograms of an image to be processed are calculated. The autocorrelation values of the calculated horizontal and vertical projection histograms are calculated, and horizontal and vertical object sizes until the autocorrelation values decrease to predetermined thresholds are calculated. The aspect ratio estimate value of the circumscribed rectangle of an object serving as a comparison region candidate in the image to be processed is calculated on the basis of the calculation results. The comparison region candidate is corrected on the basis of the aspect ratio estimate value, determining a final comparison region.
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Allison Andrae S
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Le Vu
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