公开(公告)号：US20250053761A1

公开(公告)日：2025-02-13

申请号：US18545995

申请日：2023-12-19

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Askold V. Strat ,  Eugene B. Joseph ,  Miroslav Trajkovic

IPC: G06K7/10 ,  G06K7/14

Abstract: Concepts described herein described herein relate to the determination of media that is presented to indicia readers for digital reading of said indicia. In some cases, embodiments described herein rely on operating an imaging reader in a particular mode of operation where image frames are captured with the intensity of the illumination light varying during said capture and subsequently determining, by analyzing those frame, a media type appearing within the FOV based on one of (i) a lack of an optical signature associated with varying the intensity of the illumination light during the capture of the frame or (ii) a presence of the optical signature associated with the varying the intensity of the illumination light during the capture of the frame.

公开(公告)号：US20230128240A1

公开(公告)日：2023-04-27

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 ,  G06K9/46 ,  G06K9/18

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：US20210390277A1

公开(公告)日：2021-12-16

申请号：US16898184

申请日：2020-06-10

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Duanfeng He ,  Eugene B. Joseph

IPC: 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：US12217123B2

公开(公告)日：2025-02-04

申请号：US18100304

申请日：2023-01-23

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Przemyslaw Kowalewski ,  Darran Michael Handshaw ,  Robert W. DiGiovanna ,  Mark D. Anderson ,  Eugene B. Joseph ,  Mark Drzymala ,  Miguel Orlando Rodriguez Ortiz

IPC: G06K7/10

Abstract: A method of activating an illumination assembly within a symbology reader is provided, the illumination assembly having a first illumination source and a second illumination source, the symbology reader having an imaging sensor configured to operate at a predetermined framerate where each frame includes an exposure period over which the imaging sensor is active to capture image data and a non-exposure period over which the imaging sensor is not active to capture image data, the method comprising: during a first frame, activating the first illumination source during at least a portion of the respective exposure period and activating the second illumination source over at least a portion of the respective non-exposure period; and during a second frame, activating the second illumination source during at least a portion of the respective exposure period and activating the first illumination source over at least a portion of the respective non-exposure period.

公开(公告)号：US11928550B2

公开(公告)日：2024-03-12

申请号：US17587489

申请日：2022-01-28

Applicant: ZEBRA TECHNOLOGIES CORPORATION

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

IPC: G06K7/14

CPC classification number: G06K7/1443 ,  G06K7/1417 ,  G06K7/1452 ,  G06K7/1482

Abstract: Methods and apparatus to locate and decode an arranged plurality of barcodes in an image are disclosed. An example method includes obtaining image data representing an image of an environment appearing within a FOV of an imaging device that includes the image sensor, wherein an arranged plurality of barcodes appear in the image. A first subset of the plurality of barcodes is decoded from the image data. One or more parameters representing a predicted arrangement of the plurality of barcodes in the image is determined based upon location information associated with each of the decoded first subset of the plurality of barcodes. Possible locations for respective ones of a second subset of the plurality of barcodes are determined based upon the one or more parameters, and the second subset of the plurality of barcodes are attempted to be decoded from the image data in vicinities of the respective possible locations.

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：US20230161984A1

公开(公告)日：2023-05-25

申请号：US18100304

申请日：2023-01-23

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Przemyslaw Kowalewski ,  Darran Michael Handshaw ,  Robert W. DiGiovanna ,  Mark D. Anderson ,  Eugene B. Joseph ,  Mark Drzymala ,  Miguel Orlando Rodriguez Ortiz

IPC: G06K7/10

CPC classification number: G06K7/10752 ,  G06K7/10732 ,  G06K7/10742

Abstract: A method of activating an illumination assembly within a symbology reader is provided, the illumination assembly having a first illumination source and a second illumination source, the symbology reader having an imaging sensor configured to operate at a predetermined framerate where each frame includes an exposure period over which the imaging sensor is active to capture image data and a non-exposure period over which the imaging sensor is not active to capture image data, the method comprising: during a first frame, activating the first illumination source during at least a portion of the respective exposure period and activating the second illumination source over at least a portion of the respective non-exposure period; and during a second frame, activating the second illumination source during at least a portion of the respective exposure period and activating the first illumination source over at least a portion of the respective non-exposure period.

公开(公告)号：US11562161B2

公开(公告)日：2023-01-24

申请号：US16676398

申请日：2019-11-06

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Przemyslaw Kowalewski ,  Darran Michael Handshaw ,  Robert W. DiGiovanna ,  Mark D. Anderson ,  Eugene B. Joseph ,  Mark Drzymala ,  Miguel Orlando Rodriguez Ortiz

IPC: G06K7/10

Abstract: A method of activating an illumination assembly within a symbology reader is provided, the illumination assembly having a first illumination source and a second illumination source, the symbology reader having an imaging sensor configured to operate at a predetermined framerate where each frame includes an exposure period over which the imaging sensor is active to capture image data and a non-exposure period over which the imaging sensor is not active to capture image data, the method comprising: during a first frame, activating the first illumination source during at least a portion of the respective exposure period and activating the second illumination source over at least a portion of the respective non-exposure period; and during a second frame, activating the second illumination source during at least a portion of the respective exposure period and activating the first illumination source over at least a portion of the respective non-exposure period.

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：US20230274114A1

公开(公告)日：2023-08-31

申请号：US17587851

申请日：2022-01-28

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Peizheng Ma ,  Eugene B. Joseph ,  Dongqing Chen

IPC: G06K7/14

CPC classification number: G06K7/1486 ,  G06K7/1417 ,  G06K7/1443 ,  G06K7/1452 ,  G06K7/1478

Abstract: Methods and apparatus to determine barcode decoding parameters for a plurality of barcodes in an image are disclosed. An example method includes: obtaining image data representing an image including a plurality of barcodes; decoding a first barcode of the plurality of barcodes from the image data; determining a set of barcode decoding parameters used to successfully decode the first barcode; determining whether the plurality of barcodes encoded using at least one of a same barcode size, a same module size, or a same barcode format; and when the plurality of barcodes are encoded using at least one of the same barcode size, the same module size, or the same barcode format, attempting to decode all remaining barcodes of the plurality of barcodes from the image data using first the set of barcode decoding parameters.