Optimized barcode decoding in multi-imager barcode readers and imaging engines

The invention relates to a barcode reader (100) that includes: two imaging assemblies (110, 116) configured to capture first and second images (500, 600); and a controller (126) communicatively coupled to the two imaging assemblies. The controller is configured to calculate contrast levels for the f...

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Bibliographic Details
Main Authors Harry E. Kuchenbrod, Chinh Tan, David P Goren
Format Patent
LanguageEnglish
Published 11.12.2019
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention relates to a barcode reader (100) that includes: two imaging assemblies (110, 116) configured to capture first and second images (500, 600); and a controller (126) communicatively coupled to the two imaging assemblies. The controller is configured to calculate contrast levels for the first and second images, and execute a barcode decode operation on which of the two images has the higher contrast level. The controller could execute the decode on the other image if the decode on the first selected image is unsuccessful. The contrast could be assessed as the difference between determined white and black levels, wherein said levels could be determined from a histogram of brightness values (Figs 5B, 6B). The two imaging assemblies could be the narrow and wide field-of-view assemblies often found in handheld barcode scanners. The invention aims to optimise computing resources by only decoding one of the barcode images.
Bibliography:Application Number: GB20190005383