IP Library Granted Patent US 11,062,104
Granted Patent B2
US 11,062,104 · App. 16/505,294 · Granted Jul 13, 2021

Object recognition system with invisible or nearly invisible lighting

Inventors: Duanfeng He (South Setauket, NY); Miroslav Trajkovic (Setauket, NY)
Assignee: Zebra Technologies Corporation
G06K7/1096G06K7/1097G06K7/1098G06K7/10198G06K9/00375G06K19/0614G06K19/06131G06T7/194G06T7/20
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Quick Facts
Patent No.
US 11,062,104
App. No.
16/505,294
Granted
Jul 13, 2021
Kind
B2
Abstract

A barcode reader is provided. The barcode reader includes a first image acquisition assembly having a first imager assembly configured to capture infrared (IR) light and an IR illumination assembly configured to emit IR light over at least a portion of a first field of view (FOV) of the first imager assembly so as to illuminate targets within the first FOV. The barcode reader further includes a second image acquisition assembly having a second imager assembly configured to capture visible light and a visible-light illumination assembly configured to emit visible light over at least a portion of a second FOV of the second imager assembly so as to illuminate targets within the second FOV.

Claims (43)

1. An object recognition system comprising:

a bi-optic barcode reader comprising:

a housing having a platter and an upright tower, the platter having a generally horizontal window and the upright tower having a generally upright window;

a first image acquisition assembly positioned at least partially within the housing, the first image acquisition assembly having an infrared (IR) illumination assembly and a first imager assembly, the first imager assembly having a first field of view (FOV) and being configured to capture IR light, the first FOV being directed out of the housing through the generally upright window, the IR illumination assembly being configured to emit IR light over at least a portion of the first FOV so as to illuminate targets within the first FOV; and

a second image acquisition assembly positioned at least partially within the housing, the second image acquisition assembly having a visible-light illumination assembly and a second imager assembly, the second imager assembly having a second FOV and being configured to capture visible light, the second FOV being directed out of the housing through the generally horizontal window, the visible-light illumination assembly being configured to emit visible light over at least a portion of the second FOV so as to illuminate targets within the second FOV; and

a server communicatively coupled to the bi-optic barcode reader, the server configured to:

train a machine-learning object recognition model by analyzing first image data received from the first image acquisition assembly; and

generate, via the machine-learning object recognition model, object recognition data in response to receiving second image data from the first image acquisition assembly.

2. The object recognition system of claim 1 , wherein the first image data and the second image data at least partially overlap.

3. The object recognition system of claim 1 , wherein the bi-optic barcode reader further comprises:

a controller communicatively coupled to the first image acquisition assembly and the second image acquisition assembly, the controller having instructions programmed therein which, when executed, cause the controller to instruct the IR illumination assembly and the visible-light illumination assembly to alternatively activate.

4. The object-recognition system of claim 1 , wherein the first FOV and the second FOV at least partially intersect in a target-scanning region above the platter and in front of the upright tower.

5. The object-recognition system of claim 1 , wherein the first imager assembly includes a monochrome imager, and wherein the second imager assembly includes a multi-colored imager.

6. A method, comprising:

capturing, by a first imager assembly of a first image acquisition assembly positioned at least partially within a housing having a platter and an upright tower, the platter having a generally horizontal window and the upright tower having a generally upright window, images of targets within a first FOV illuminated by infrared (IR) light emitted by an IR illumination assembly of the first image acquisition assembly, wherein the first FOV is directed out of the housing through the generally upright window;

capturing, by a second imager assembly of a second image acquisition assembly positioned at least partially within the housing, images of targets within a second FOV illuminated by visible light emitted by a visible-light illumination assembly of the second image acquisition assembly, wherein the second FOV is directed out of the housing through the generally horizontal window;

training, by a server communicatively coupled to the bi-optic barcode reader, a machine-learning object recognition model by analyzing first image data received from the first image acquisition assembly; and

generating, by the server, via the machine-learning object recognition model, object recognition data in response to receiving second image data from the first image acquisition assembly.

7. The method of claim 6 , further comprising:

instructing, by a controller communicatively coupled to the first image acquisition assembly and the second image acquisition assembly, the IR illumination assembly and the visible-light illumination assembly to alternatively activate.

8. The method of claim 6 , wherein the first FOV and the second FOV at least partially intersect in a target-scanning region above the platter and in front of the upright tower.

9. The method of claim 6 , wherein the first imager assembly includes a monochrome imager, and wherein the second imager assembly includes a multi-colored imager.

10. A method, comprising:

capturing, by a first imager assembly of a first image acquisition assembly positioned at least partially within a housing having a window, images of targets within a first FOV illuminated by infrared (IR) light emitted by an IR illumination assembly of the first image acquisition assembly, wherein the first FOV is directed out of the housing through the window;

capturing, by a second imager assembly of a second image acquisition assembly positioned at least partially within the housing, images of targets within a second FOV illuminated by visible light emitted by a visible-light illumination assembly of the second image acquisition assembly, wherein the second FOV is directed out of the housing through the window;

training, by a server communicatively coupled to the barcode reader, a machine-learning object recognition model by analyzing first image data received from the first image acquisition assembly; and

generating, by the server, via the machine-learning object recognition model, object recognition data in response to receiving second image data from the first image acquisition assembly.

11. The method of claim 10 , further comprising:

instructing, by a controller communicatively coupled to the first image acquisition assembly and the second image acquisition assembly, the IR illumination assembly and the visible-light illumination assembly to alternatively activate.

12. The method of claim 10 , wherein the first FOV and the second FOV at least partially intersect in a target-scanning region.

13. The method of claim 10 , wherein the first imager assembly includes a monochrome imager, and wherein the second imager assembly includes a multi-colored imager.

14. An object recognition system comprising:

a barcode reader comprising:

a housing having a window;

a first image acquisition assembly positioned at least partially within the housing, the first image acquisition assembly having an infrared (IR) illumination assembly and a first imager assembly, the first imager assembly having a first field of view (FOV) and being configured to capture IR light, the first FOV being directed out of the housing through the window, the IR illumination assembly being configured to emit IR light over at least a portion of the first FOV so as to illuminate targets within the first FOV; and

a second image acquisition assembly positioned at least partially within the housing, the second image acquisition assembly having a visible-light illumination assembly and a second imager assembly, the second imager assembly having a second FOV and being configured to capture visible light, the second FOV being directed out of the housing through the window, the visible-light illumination assembly being configured to emit visible light over at least a portion of the second FOV so as to illuminate targets within the second FOV; and a server communicatively coupled to the barcode reader, the server configured to:

train a machine-learning object recognition model by analyzing first image data received from the first image acquisition assembly; and

generate, via the machine-learning object recognition model, object recognition data in response to receiving second image data from the first image acquisition assembly.

15. The object recognition system of claim 14 , wherein the first image data and the second image data at least partially overlap.

16. The object recognition system of claim 14 , wherein the barcode reader further comprises:

a controller communicatively coupled to the first image acquisition assembly and the second image acquisition assembly, the controller having instructions programmed therein which, when executed, cause the controller to instruct the IR illumination assembly and the visible-light illumination assembly to alternatively activate.

17. The object-recognition system of claim 14 , wherein the first FOV and the second FOV at least partially intersect in a target-scanning region.

18. The object-recognition system of claim 14 , wherein the first imager assembly includes a monochrome imager, and wherein the second imager assembly includes a multi-colored imager.

Assignments (3)
RELEASE OF SECURITY INTEREST - 364 - DAY Recorded Mar 5, 2021
From: JPMORGAN CHASE BANK, N.A.
To: ZEBRA TECHNOLOGIES CORPORATION; LASER BAND, LLC; TEMPTIME CORPORATION
Reel/Frame 056036/0590 →
SECURITY INTEREST Recorded Sep 1, 2020
From: ZEBRA TECHNOLOGIES CORPORATION; LASER BAND, LLC; TEMPTIME CORPORATION
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 053841/0212 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2020
From: HE, DUANFENG; TRAJKOVIC, MIROSLAV
To: ZEBRA TECHNOLOGIES CORPORATION
Reel/Frame 053604/0365 →