公开(公告)号：US11727664B2

公开(公告)日：2023-08-15

申请号：US17241544

申请日：2021-04-27

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Michelle X. Wang ,  Justin F. Barish

IPC: G06V10/25 ,  G06V10/141 ,  H04N23/71 ,  H04N23/73

CPC classification number: G06V10/25 ,  G06V10/141 ,  H04N23/71 ,  H04N23/73

Abstract: Systems and methods for adaptively determining a region of interest (ROI) are disclosed herein. An example device includes an imaging assembly and a controller. The imaging assembly captures image data comprising pixel data from a plurality of pixels. The controller calculates a contrast value for each pixel of the plurality of pixels, generates a histogram of contrast values, calculates an area under the curve of the histogram, and determines a contrast value threshold to delineate between high-contrast value pixels and low-contrast value pixels. The controller also identifies a ROI within the image data by locating a region within the image data that (i) satisfies a pre-determined size threshold and (ii) contains a largest number of high-contrast value pixels relative to all other regions that satisfy the pre-determined size threshold, and adjusts imaging parameters of the imaging assembly based on the ROI to capture at least one subsequent image.

公开(公告)号：US12045691B1

公开(公告)日：2024-07-23

申请号：US18127940

申请日：2023-03-29

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Andrew Cornell ,  Michelle X. Wang ,  Matthew D. Blasczak ,  Askold V. Strat

IPC: G06K7/14 ,  G06T9/00 ,  G06V10/60 ,  H04N23/73 ,  H04N23/74

CPC classification number: G06K7/1417 ,  G06T9/00 ,  G06V10/60 ,  H04N23/73 ,  H04N23/74

Abstract: An indicia reading system and associated methods discriminate between types of media upon which encoded indicia is rendered. Encoded indicia rendered upon a medium are imaged using different sets of image acquisition parameter settings. An attempt to decode the encoded indicia that are imaged is made and the image acquisition parameter settings corresponding to successfully decoding the encoded indicia are identified. A type of the medium upon which the encoded indicia is rendered is determined based on which of the sets of image acquisition parameter settings correspond to the encoded indicia being successfully decoded.

公开(公告)号：US20230222304A1

公开(公告)日：2023-07-13

申请号：US17575401

申请日：2022-01-13

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Michelle X. Wang

IPC: G06K7/14 ,  G06F3/14 ,  G01S17/10

CPC classification number: G06K7/1413 ,  G06F3/14 ,  G01S17/10

Abstract: Methods and devices for improving indicia decoding with an imaging device are disclosed herein. An example method includes: (a) searching, by an imaging device, a search region within a current image for an indicia, wherein the search region includes a plurality of search seeds; (b) attempting, by the imaging device, to decode the indicia within the search region by analyzing image data corresponding to each seed of the plurality of search seeds; (c) responsive to not decoding the indicia, capturing, by the imaging device, a subsequent image featuring the indicia; (d) adjusting, by the imaging device, the search region based on a distance between the imaging device and the indicia featured in the subsequent image; (e) designating the subsequent image as the current image; and (f) iteratively performing (a)-(f) until the imaging device decodes the indicia.

公开(公告)号：US11847523B2

公开(公告)日：2023-12-19

申请号：US17575401

申请日：2022-01-13

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Michelle X. Wang

IPC: G06K7/14 ,  G01S17/10 ,  G06F3/14

CPC classification number: G06K7/1413 ,  G01S17/10 ,  G06F3/14

Abstract: Methods and devices for improving indicia decoding with an imaging device are disclosed herein. An example method includes: (a) searching, by an imaging device, a search region within a current image for an indicia, wherein the search region includes a plurality of search seeds; (b) attempting, by the imaging device, to decode the indicia within the search region by analyzing image data corresponding to each seed of the plurality of search seeds; (c) responsive to not decoding the indicia, capturing, by the imaging device, a subsequent image featuring the indicia; (d) adjusting, by the imaging device, the search region based on a distance between the imaging device and the indicia featured in the subsequent image; (e) designating the subsequent image as the current image; and (f) iteratively performing (a)-(f) until the imaging device decodes the indicia.

公开(公告)号：US20220343102A1

公开(公告)日：2022-10-27

申请号：US17241544

申请日：2021-04-27

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Dayou Wang ,  Michelle X. Wang ,  Justin F. Barish

IPC: G06K9/32 ,  G06K9/20 ,  H04N5/235

Abstract: Systems and methods for adaptively determining a region of interest (ROI) are disclosed herein. An example device includes an imaging assembly and a controller. The imaging assembly captures image data comprising pixel data from a plurality of pixels. The controller calculates a contrast value for each pixel of the plurality of pixels, generates a histogram of contrast values, calculates an area under the curve of the histogram, and determines a contrast value threshold to delineate between high-contrast value pixels and low-contrast value pixels. The controller also identifies a ROI within the image data by locating a region within the image data that (i) satisfies a pre-determined size threshold and (ii) contains a largest number of high-contrast value pixels relative to all other regions that satisfy the pre-determined size threshold, and adjusts imaging parameters of the imaging assembly based on the ROI to capture at least one subsequent image.