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公开(公告)号：US11587238B2
公开(公告)日：2023-02-21
申请号：US17081412
申请日：2020-10-27
Applicant: ZEBRA TECHNOLOGIES CORPORATION
Inventor： Eliezer Azi Ben-Lavi , Qifeng Gan , Vlad Gorodetsky
IPC: G06T7/168 , G06T7/13 , G06T7/00 , G06T7/174 , G06V10/22 , G06V10/26 , G06T7/11 , G06V10/42 , G06T7/143
Abstract: A method of barrier detection in an imaging controller includes: obtaining an image of a support structure configured to support a plurality of items on a support surface extending between a shelf edge and a shelf back; extracting frequency components representing pixels of the image; based on the extracted frequency components, identifying a barrier region of the image, the barrier region containing a barrier adjacent to the shelf edge; and detecting at least one empty sub-region within the barrier region, wherein the empty sub-region is free of items between the barrier and the shelf back.
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公开(公告)号：US20220130050A1
公开(公告)日：2022-04-28
申请号：US17081412
申请日：2020-10-27
Applicant: ZEBRA TECHNOLOGIES CORPORATION
Inventor： Eliezer Azi Ben-Lavi , Qifeng Gan , Vlad Gorodetsky
Abstract: A method of barrier detection in an imaging controller includes: obtaining an image of a support structure configured to support a plurality of items on a support surface extending between a shelf edge and a shelf back; extracting frequency components representing pixels of the image; based on the extracted frequency components, identifying a barrier region of the image, the barrier region containing a barrier adjacent to the shelf edge; and detecting at least one empty sub-region within the barrier region, wherein the empty sub-region is free of items between the barrier and the shelf back.
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公开(公告)号：US11080566B2
公开(公告)日：2021-08-03
申请号：US16429687
申请日：2019-06-03
Applicant: ZEBRA TECHNOLOGIES CORPORATION
Inventor： Mohsen Ghazel , Joseph Lam , Qifeng Gan , Kiril Lomakin
Abstract: A method of detecting gaps on a support structure includes: obtaining, at an imaging controller, (i) a plurality of depth measurements representing the support structure according to a common frame of reference, and (ii) a plurality of label indicators each defining a label position in the common frame of reference; for each of the label indicators: classifying the label indicator as either a peg label or a shelf label, based on a portion of the depth measurements selected according to the label position and a portion of the depth measurements adjacent to the label position; generating an item search space in the common frame of reference according to the class of the label indicator; and determining, based on a subset of the depth measurements within the item search space, whether the item search space contains an item.
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