公开(公告)号：US20200065537A1

公开(公告)日：2020-02-27

申请号：US16109359

申请日：2018-08-22

Applicant: Zebra Technologies Corporation

Inventor： Duanfeng He ,  Kenneth S. Bhella ,  Lindsay M. Fahmi ,  David S. Koch ,  Dongqing Chen

IPC: G06K7/14 ,  G06K9/32 ,  G06K9/78 ,  G06K9/20 ,  G06K7/10

Abstract: Embodiments of the present invention generally relate to the field of inventory management. In an embodiment, the present application is a method of reading barcodes. The method includes capturing, by an imaging assembly, an image of a target, the target including: (i) a symbol encoding a payload data, and (ii) a set of one or more alphanumeric characters containing a payload descriptor associated with the symbol; decoding, by a first processor, the symbol to extract the payload data; performing, by a second processor, an optical character recognition analysis on the set of one or more alphanumeric characters to identify the payload descriptor associated with the symbol; associating the payload data with the payload descriptor, resulting in an associated pair; and forwarding the associated pair to a third processor for further processing of the payload data based on the payload descriptor.

公开(公告)号：US12067449B2

公开(公告)日：2024-08-20

申请号：US17900789

申请日：2022-08-31

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He

IPC: G06K7/10 ,  G06K7/14 ,  G06T7/20 ,  G06T7/70

CPC classification number: G06K7/10722 ,  G06K7/1417 ,  G06T7/20 ,  G06T7/70 ,  G06T2200/04 ,  G06T2207/30204

Abstract: Systems and methods for tracking objects in space are disclosed. The systems and methods include capturing two-dimensional (2D) image data from which a barcode is decoded and capturing, generating, or otherwise accessing three-dimensional (3D) image data from which a 3D object is identified. A 2D image of a barcode and barcode data is combined with the 3D object to form reference 3D object data that is used for comparison to subsequently captured 3D and 2D image data. In some examples, a four-dimensional (4D) projection of the reference 3D object data is used for comparison and validation of the subsequently captured 3D and 2D image data.

公开(公告)号：US11922270B2

公开(公告)日：2024-03-05

申请号：US17510757

申请日：2021-10-26

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Eugene B. Joseph ,  Peizheng Ma

IPC: G06K7/14 ,  G06V30/18 ,  G06V30/224

CPC classification number: G06K7/1443 ,  G06K7/1417 ,  G06K7/1452 ,  G06V30/18105 ,  G06V30/2247

Abstract: Methods and apparatus to locate barcodes in color images are disclosed. An example method includes: obtaining a color digital image using an image sensor, the image including a plurality of pixels represented by respective ones of a plurality of luminance components and respective ones of a plurality of color components; determining, based on the luminance components, a plurality of barcode indicative characteristics for respective ones of a plurality of regions of the image; determining, based on the plurality of color components, a plurality of color content amounts for respective ones of the plurality of regions; identifying one or more regions of the plurality of regions that have their respective color content amount satisfy a first criteria, and their respective barcode indicative characteristic satisfy a second criteria; and processing image data corresponding to each of the one or more regions to attempt to identify one or more barcodes in the image.

公开(公告)号：US11295104B2

公开(公告)日：2022-04-05

申请号：US16898184

申请日：2020-06-10

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Eugene B. Joseph

IPC: G06K7/00 ,  G06K7/10 ,  G06K7/14

Abstract: Example methods and apparatus to read barcodes on reflective surfaces are disclosed herein. An example method for handling a reflective surface in an imaging reader includes capturing one or more images of a surface of an item; detecting whether a specular reflection is present in the one or more images; when a specular reflection is detected, processing one or more additional images of the surface using a predetermined pattern of first processing suitable to identify a barcode on a reflective surface and second processing suitable to identify a barcode on a non-reflective surface; and when a specular reflection is not detected, processing one or more additional images of the surface using the second processing suitable to identify a barcode on a non-reflective surface.

公开(公告)号：US11062104B2

公开(公告)日：2021-07-13

申请号：US16505294

申请日：2019-07-08

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Miroslav Trajkovic

IPC: G06K7/10 ,  G06K9/00 ,  G06K19/06 ,  G06T7/194 ,  G06T7/20

Abstract: A barcode reader is provided. The barcode reader includes a first image acquisition assembly having a first imager assembly configured to capture infrared (IR) light and an IR illumination assembly configured to emit IR light over at least a portion of a first field of view (FOV) of the first imager assembly so as to illuminate targets within the first FOV. The barcode reader further includes a second image acquisition assembly having a second imager assembly configured to capture visible light and a visible-light illumination assembly configured to emit visible light over at least a portion of a second FOV of the second imager assembly so as to illuminate targets within the second FOV.

公开(公告)号：US20210150210A1

公开(公告)日：2021-05-20

申请号：US16688645

申请日：2019-11-19

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Miroslav Trajkovic

IPC: G06K9/00 ,  G06K9/62 ,  G06N3/08

Abstract: Systems and methods for object recognition with limited input are disclosed herein. An example method includes updating a neural network trained to perform object recognition on a first rendition of an object, so that the neural network performs object recognition on a second rendition of the object, using a limited set of input images. The method includes receiving a limited set of model images of the second rendition of the object, accessing a corresponding image mapping, and generating a large number of training images from the limited set, where image mappings include geometric, illumination, and/or obscuration transformations. The neural network is then trained, from this initial small set, to classify the second rendition of the object.

公开(公告)号：US20210012070A1

公开(公告)日：2021-01-14

申请号：US16505294

申请日：2019-07-08

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Miroslav Trajkovic

IPC: G06K7/10 ,  G06K9/00 ,  G06T7/20 ,  G06T7/194

Abstract: A barcode reader is provided. The barcode reader includes a first image acquisition assembly having a first imager assembly configured to capture infrared (IR) light and an IR illumination assembly configured to emit IR light over at least a portion of a first field of view (FOV) of the first imager assembly so as to illuminate targets within the first FOV. The barcode reader further includes a second image acquisition assembly having a second imager assembly configured to capture visible light and a visible-light illumination assembly configured to emit visible light over at least a portion of a second FOV of the second imager assembly so as to illuminate targets within the second FOV.