公开(公告)号：US20210295087A1

公开(公告)日：2021-09-23

申请号：US16824038

申请日：2020-03-19

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Bin Sun ,  Yan Zhang ,  Kevin J. O'Connell ,  Yun Fu

IPC: G06K9/46 ,  G06K9/32 ,  G06T7/00 ,  G06N3/08 ,  B65G11/20

Abstract: A method includes: storing (i) a reference image of a chute for receiving objects, and (ii) a region of interest mask corresponding to a location of the chute in a field of view of an image sensor; at a processor, controlling the image sensor to capture an image of the chute; applying an illumination adjustment to the image; selecting, at the processor, a portion of the image according to the region of interest mask; generating a detection image based on a comparison of the selected portion and the reference image; determining, based on the detection image, a fullness indicator for the chute; and providing the fullness indicator to notification system.

公开(公告)号：US11210549B2

公开(公告)日：2021-12-28

申请号：US16824038

申请日：2020-03-19

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Bin Sun ,  Yan Zhang ,  Kevin J. O'Connell ,  Yun Fu

IPC: G06K9/46 ,  G06K9/32 ,  G06N3/08 ,  B65G11/20 ,  G06T7/00

Abstract: A method includes: storing (i) a reference image of a chute for receiving objects, and (ii) a region of interest mask corresponding to a location of the chute in a field of view of an image sensor; at a processor, controlling the image sensor to capture an image of the chute; applying an illumination adjustment to the image; selecting, at the processor, a portion of the image according to the region of interest mask; generating a detection image based on a comparison of the selected portion and the reference image; determining, based on the detection image, a fullness indicator for the chute; and providing the fullness indicator to notification system.