US 12,406,158 B1
Offline selection of optimal 2D image filters chains for recover decodability of direct part marked (DPM) and poorly printed labels
Stefano Santi, Eugene, OR (US); and Lucrezia Paradisi, Bologna (IT)
Assigned to Datalogic IP Tech S.r.l., Calderara di Reno (IT)
Filed by Datalogic IP Tech S.r.l., Calderara di Reno (IT)
Filed on Jul. 9, 2024, as Appl. No. 18/767,715.
Claims priority of provisional application 63/634,058, filed on Apr. 15, 2024.
Int. Cl. G06K 7/14 (2006.01); G06T 5/20 (2006.01); G06T 5/70 (2024.01)
CPC G06K 7/1447 (2013.01) [G06T 5/20 (2013.01); G06T 5/70 (2024.01); G06T 2207/20036 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A code reader, comprising:
a non-transitory memory configured to store a plurality of image processing filters including at least one pipelined complex image processing filter;
an image sensor configured to image machine-readable indicia; and
at least one processor in communication with the non-transitory memory and image sensor, and configured to:
perform an automatic setup procedure configured to:
capture a plurality of sample machine-readable indicia;
decode the sample machine-readable indicia utilizing a plurality of the image processing filters including at least one of the at least one pipelined complex image processing filters;
select a subset of the image processing filters based on performance of the image processing filters in decoding the plurality of sample machine-readable indicia for use during normal code reading operations of the code reader; and
perform normal code reading operations in reading machine-readable indicia using the selected subset of the image processing filters.