Image analysis – Histogram processing – For setting a threshold
Reexamination Certificate
2011-05-03
2011-05-03
Ahmed, Samir A (Department: 2624)
Image analysis
Histogram processing
For setting a threshold
C382S168000, C382S171000
Reexamination Certificate
active
07936921
ABSTRACT:
A method for efficiently calculating signal thresholds for use in signal processing is described. The method computes and stores a cumulative histogram and a weighted cumulative histogram. The method then provides a first estimate for a threshold based on a single ratio. The method next performs an iterative computation to get to the ultimate threshold result. Method iterations only require multiplication and addition operations on the stored values making the method well suited for implementation in fixed-point digital signal processors.
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Koirala Dipesh
Thron Christopher P.
Ahmed Samir A
Dillon & Yudell LLP
Freescale Semiconductor Inc.
Liu Li
LandOfFree
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