公开(公告)号：US20190318141A1

公开(公告)日：2019-10-17

申请号：US15955612

申请日：2018-04-17

Applicant: Zebra Technologies Corporation

Inventor： Chunhua Chen ,  Harry E. Kuchenbrod ,  Carl D. Wittenberg ,  Chinh Tan ,  Daniel F. Brown

IPC: G06K7/10

Abstract: Embodiments of the present invention generally relate to the field of barcode readers, and more particularly, to barcode readers designed to operate in an environment with densely packed barcodes. In an embodiment, the present invention is a barcode reader that includes an imaging assembly operable to capture image frames; an aiming light assembly operable to emit an aiming light; and a controller configured to: decode a barcode within a decode frame image captured by the imaging assembly; upon decoding the barcode within the decode frame image, cause a capture of a picklist frame image; and report the barcode to an external host upon at least some overlap between a location of the barcode within the decode frame image and the location of the at least a portion of the aiming light pattern in the picklist frame image.

公开(公告)号：US11265455B1

公开(公告)日：2022-03-01

申请号：US17364581

申请日：2021-06-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Harry E. Kuchenbrod

IPC: H04N5/232 ,  G06T7/73 ,  H04N5/369

Abstract: A method and apparatus for differentiating focus drift of an imaging system from position changes of an object of interest. The method includes obtaining an image of an object of interest and identifying a region of interest in the image, wherein the region of interest contains an indicia indicative of the object of interest. The processor determines an image quality of the image and analyzes the indicia and determines a pixel measurement of the indicia. The processor then compares the pixel measurement of the indicia to a reference pixel measurement. Based on the comparison, the processor determines that the image quality of the image results either from a difference in a distance of the object from the imaging system or from focusing drift of the imaging system.

公开(公告)号：US12147868B2

公开(公告)日：2024-11-19

申请号：US17977352

申请日：2022-10-31

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： David P. Goren ,  Harry E. Kuchenbrod ,  William Sackett ,  Vladimir Gurevich ,  Mehaboob Kumbalakkuzhiyil

IPC: G06K7/10 ,  G06K7/14

Abstract: Devices having a long-range imaging engine formed of two cameras having different resolution are disclosed herein. An example imaging engine includes a front-end, with the cameras, terminated in a communication interface for coupling to an external host processor that performs image processor. The front-end has a near field image sensor and a far field image sensor, and a normalization processor to receive the respective image data from the sensors and normalize that image data prior to sending to the host processor. Normalization includes adjusting an image size, aspect ratio, or pixel count complying with data rate constraints imposed by the communication interface or the host processor.

公开(公告)号：US10452885B1

公开(公告)日：2019-10-22

申请号：US15955255

申请日：2018-04-17

Applicant: Zebra Technologies Corporation

Inventor： Harry E. Kuchenbrod ,  David P. Goren ,  Chinh Tan

IPC: G06K7/10 ,  G06K7/14

Abstract: In an embodiment, the present invention is a barcode reader that includes: a first imaging assembly configured to capture a first image; a second imaging assembly positioned relative to the first imaging assembly and configured to capture a second image; and a controller communicatively coupled to the first imaging assembly and the second imaging assembly. The controller is configured to: calculate a first contrast level within a first region within the first image; calculate a second contrast level within a second region within the second image; execute a first barcode-decode operation on the first image when the first contrast level is greater than the second contrast level; and execute the first barcode-decode operation on the second image when the second contrast level is greater than the first contrast level.

公开(公告)号：US20190318145A1

公开(公告)日：2019-10-17

申请号：US15955255

申请日：2018-04-17

Applicant: Zebra Technologies Corporation

Inventor： Harry E. Kuchenbrod ,  David P. Goren ,  Chinh Tan

IPC: G06K7/14

Abstract: In an embodiment, the present invention is a barcode reader that includes: a first imaging assembly configured to capture a first image; a second imaging assembly positioned relative to the first imaging assembly and configured to capture a second image; and a controller communicatively coupled to the first imaging assembly and the second imaging assembly. The controller is configured to: calculate a first contrast level within a first region within the first image; calculate a second contrast level within a second region within the second image; execute a first barcode-decode operation on the first image when the first contrast level is greater than the second contrast level; and execute the first barcode-decode operation on the second image when the second contrast level is greater than the first contrast level.

公开(公告)号：US11570351B2

公开(公告)日：2023-01-31

申请号：US17364552

申请日：2021-06-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Harry E. Kuchenbrod

IPC: H04N5/232 ,  G06T7/00 ,  G06K7/10 ,  G06K7/14

Abstract: A method for correcting focus drift of an imaging system. The method includes an imaging system obtaining a plurality of images of an object of interest with each image obtained at a different focus of the imaging system. A processor then determines image property values of each image of the plurality of images and determines an image quality metric from each image of the plurality of images. The processor then compares the image quality metric to a reference metric and determines, based on the comparison, if a focus drift has occurred, and further adjusts a focus of the imaging system if a focus drift has occurred.

公开(公告)号：US20240143955A1

公开(公告)日：2024-05-02

申请号：US17977352

申请日：2022-10-31

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： David P. Goren ,  Harry E. Kuchenbrod ,  William Sackett ,  Vladimir Gurevich ,  Mehaboob Kumbalakkuzhiyil

IPC: G06K7/10 ,  G06K7/14

CPC classification number: G06K7/10722 ,  G06K7/10831 ,  G06K7/1093 ,  G06K7/146

Abstract: Devices having a long-range imaging engine formed of two cameras having different resolution are disclosed herein. An example imaging engine includes a front-end, with the cameras, terminated in a communication interface for coupling to an external host processor that performs image processor. The front-end has a near field image sensor and a far field image sensor, and a normalization processor to receive the respective image data from the sensors and normalize that image data prior to sending to the host processor. Normalization includes adjusting an image size, aspect ratio, or pixel count complying with data rate constraints imposed by the communication interface or the host processor.

公开(公告)号：US20230007185A1

公开(公告)日：2023-01-05

申请号：US17364552

申请日：2021-06-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Harry E. Kuchenbrod

IPC: H04N5/232 ,  G06T7/00 ,  G06K7/14 ,  G06K7/10

Abstract: A method for correcting focus drift of an imaging system. The method includes an imaging system obtaining a plurality of images of an object of interest with each image obtained at a different focus of the imaging system. A processor then determines image property values of each image of the plurality of images and determines an image quality metric from each image of the plurality of images. The processor then compares the image quality metric to a reference metric and determines, based on the comparison, if a focus drift has occurred, and further adjusts a focus of the imaging system if a focus drift has occurred.

公开(公告)号：US10671824B2

公开(公告)日：2020-06-02

申请号：US15955612

申请日：2018-04-17

Applicant: Zebra Technologies Corporation

Inventor： Chunhua Chen ,  Harry E. Kuchenbrod ,  Carl D. Wittenberg ,  Chinh Tan ,  Daniel F. Brown

IPC: G06K7/10

Abstract: Embodiments of the present invention generally relate to the field of barcode readers, and more particularly, to barcode readers designed to operate in an environment with densely packed barcodes. In an embodiment, the present invention is a barcode reader that includes an imaging assembly operable to capture image frames; an aiming light assembly operable to emit an aiming light; and a controller configured to: decode a barcode within a decode frame image captured by the imaging assembly; upon decoding the barcode within the decode frame image, cause a capture of a picklist frame image; and report the barcode to an external host upon at least some overlap between a location of the barcode within the decode frame image and the location of the at least a portion of the aiming light pattern in the picklist frame image.