公开(公告)号：US11188727B1

公开(公告)日：2021-11-30

申请号：US16696156

申请日：2019-11-26

Applicant: Amazon Technologies, Inc.

Inventor： Taylor Jeffrey Lloyd ,  Keith Deacon ,  Dylan Andrew Norris ,  Alton Paul Werronen ,  Animesh Mishra ,  Roman Shmulevich

IPC: G06K7/10 ,  G06K7/14 ,  G06K7/015

Abstract: A camera-based barcode reader captures an image, determines a region of interest of a barcode within the image, and generates a barcode image from the region of interest. The camera-based barcode reader aligns each of multiple horizontal regions within the barcode image to a reference horizontal region within the barcode image. The alignment of a horizontal region includes (i) determining a set of alignment parameters to apply to the horizontal region based on a comparison of the reference horizontal region to the horizontal region when adjusted to different combinations of alignment parameters and (ii) adjusting the horizontal region according to the set of alignment parameters for that horizontal region. After aligning the barcode image, the camera-based barcode reader decodes the barcode from the barcode image.

公开(公告)号：US10915804B1

公开(公告)日：2021-02-09

申请号：US16278662

申请日：2019-02-18

Applicant: Amazon Technologies, Inc.

Inventor： Roman Shmulevich ,  Keith Deacon ,  Vikram Raghavan ,  Alton Paul Werronen

IPC: G06K19/06 ,  G06K7/14

Abstract: Embodiments herein describe design techniques for generating a fingerprint for a shipping label using symbols or bit segments. These symbols or bit segments can be read using lower resolution cameras at greater distances than 1D or 2D barcodes in the shipping labels. In one embodiment, a label designer identifies blank zones in the design of a shipping label and selects symbols to place in those zones. The label designer can select random types of symbols and random sizes for those symbols. When reading the shipping label, a CV system can identify the symbols and their sizes and generate the fingerprint. In another embodiment, the label designer places bit segments in the identified blank zones. The CV system can then read the blank zones in a predefined order and merge the bits segments to form a digital fingerprint for the shipping label.