Extracting graphical bar codes from an input image

Details Extracting graphical bar codes from an input image Extracting graphical bar codes from an input image

2007-12-04

2007-12-04

Mehta, Bhavesh M (Department: 2624)

Image analysis

Pattern recognition

Template matching

C235S462080

Reexamination Certificate

active

10262434

ABSTRACT:
Systems and methods for extracting a graphical bar code (i.e., an image that contains inconspicuous graphical modulations that encode embedded information) from an input image are described. In one aspect, estimates of position coordinates for a detected graphical bar code candidate are computed. An objective function is optimized based on the computed position coordinates to obtain final position coordinate estimates for the graphical bar code candidate. Non-graphical bar code regions are trimmed from the input image based on the final position coordinates for the graphical bar code candidate to produce a trimmed graphical bar code candidate for decoding.

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