Patent ID: 9027836
Filing Date: 2015-05-12
Classification: G06K

Abstract:
1. A barcode reader, comprising: an illumination system; a first lens assembly; a second lens assembly; fiducial offset data determined from a plurality of calibration image frames captured at multiple different calibration distances, each calibration image frame comprising: instructions executable by a processor to (i) select at least one feature that is present in both a first barcode image captured via the first lens assembly and a second barcode image captured via the second lens assembly, (ii) determine at least one feature offset, each feature offset indicating an offset between a first location of a selected feature within the first barcode image and a second location of the selected feature within the second barcode image, (iii) determine an estimated barcode distance based on the at least one feature offset and the fiducial offset data, and (iv) use the estimated barcode distance to select at least one operating parameter of the barcode reader.