System and method for decoding barcodes captured with a...

Details System and method for decoding barcodes captured with a... System and method for decoding barcodes captured with a...

2011-02-24

2011-12-20

Hess, Daniel (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462040, C235S462110

Reexamination Certificate

active

08079525

ABSTRACT:
A computing device and method for reading a barcode captured with a color image sensor is disclosed. The barcode can have features and background that have equal brightness such that the barcode could not be decoded with known greyscale decoding techniques. The method for reading the barcode includes receiving color image values for each pixel of a captured image of a target barcode from a color image sensor, determining chrominance values for each pixel from the color image values, detecting edges based on the chrominance values to generate an edge-detected image that is provided to a greyscale barcode decoder to decode the information in the target barcode. The chrominance values can be based on the blue and red difference components from the YUV image format, and the U and V values can be combined using color temperature information.

REFERENCES:
patent: 2008/0265036 (2008-10-01), Wichers
patent: 2010/0282851 (2010-11-01), Bulan et al.
patent: 2011/0007967 (2011-01-01), Soderberg et al.

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