SYSTEMS AND METHODS FOR DETECTING AND DECODING BARCODES WITH BAR DILATION

SYSTEMS AND METHODS FOR DETECTING AND DECODING BARCODES WITH BAR DILATION

Systems and methods for detecting and decoding 4-state barcodes with extreme bar dilation are disclosed. The method is implemented in a computing device and includes: separating an extracted image of a barcode into a top half and a bottom half; estimating bar positions and then sampling heights of t...

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Bibliographische Detailangaben
Hauptverfasser: AKULIS, JOSEPH G, STREBEL, ROBERT, VANHALL, RICHARD C
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:Systems and methods for detecting and decoding 4-state barcodes with extreme bar dilation are disclosed. The method is implemented in a computing device and includes: separating an extracted image of a barcode into a top half and a bottom half; estimating bar positions and then sampling heights of the top and bottom images at each position; using adjacent bar height differences to determine the top and bottom of the tracker portion for each bar position; removing the tracker contribution to the top and bottom heights at each bar position; sending the resulting sequence of bars with ascender and descender information to a decoder for decoding processes..