Method and apparatus for dynamically segmenting a bar code

Details Method and apparatus for dynamically segmenting a bar code Method and apparatus for dynamically segmenting a bar code

G - Physics

06

K

354/56

G06K 9/58 (2006.01) G06K 7/10 (2006.01) G06K 9/82 (2006.01)

Patent

CA 1222322

METHOD AND APPARATUS FOR DYNAMICALLY SEGMENTING A BAR CODE Abstract A method and-apparatus are disclosed for reading a two-dimensional bar code having bars located nominally at predetermined pitch increments. The invention provides a method and apparatus for reading a two-dimensional bar code and dynamically segmenting it into individual bars on a real time basis, as it is read. The segmentation is done on a bar-to-bar basis, and may be adjusted for an indivi- dual bar as necessary. The method and apparatus locate the bar data, scan it, and create a profile vector having ele- ments based upon the amount of image data in each scan. The vector is compared to a predetermined stored set of vector elements representing the likelihood that each scan line of image data contains bar image data. Those scan lines of image data corresponding to a bar image are sent to recognition logic and those scan lines of image data corresponding to a space are disregarded.

478632

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