US 11,893,786 B1Granted

Scan-free barcode reading

AssigneeAmazon Technologies, Inc.

InventorsFrank Preiswerk, Timothy Stallman, Michael R. Calder, Armon Shariati

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Abstract

Systems and techniques for performing a scan-free reading of a structured identifier are provided. One technique involves obtaining a first set of images of an object within a scanning volume of an environment. The object is passed through the scanning volume without an explicit presentation of the structured identifier to an optical scanner within the environment. For each image of a plurality of the first set of images, an indication of a first region of interest of the structured identifier on the object within the image is obtained, based in part on a second set of images of the object having a lower quality than the first set of images. The first region of interest of the structured identifier is extracted from a first image of the plurality of the first set of images. The structured identifier within the first region of interest within the first image is decoded.

Claims20

Dependent claims

A scan-free reader system, comprising

a plurality of image sensors, each disposed in a different location within an environment to create a scanning volume within the environment;
and
a computing system coupled to the plurality of image sensors and configured to:
capture, via the plurality of image sensors, a first plurality of images of an object within the scanning volume, wherein the object is moved through the scanning volume (i) as part of a picking operation or a stowing operation and (ii) without an explicit presentation of a structured identifier on the object to at least one of the plurality of image sensors;
generate a second plurality of images corresponding to the first plurality of images, wherein each of the second plurality of images has a lower quality than a respective one of the first plurality of images;
determine, via a machine learning model, a first region of interest of the structured identifier on the object within a first image of the second plurality of images;
identify, based on the first region of interest, a second region of interest of the structured identifier on the object within a first image of the first plurality of images corresponding to the first image of the second plurality of images;
extract an image of the second region of interest within the first image of the first plurality of images;
and
decode the structured identifier within the image of the second region of interest to obtain data corresponding to the structured identifier.

7 more elements

Dependencies are inferred from the claim text.