Granted Patent B2

US 12,450,717 · App. 18/466,834 · Granted Oct 21, 2025

Inventors: Kun Liu (Changzhou, CN); Lei Song (Changzhou, CN); Guangcheng Zhong (Changzhou, CN)

Assignees: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED; CONTEMPORARY AMPEREX TECHNOLOGY CO, LIMITED

G06T7/0004G06K7/1417G06T7/60G06T7/70G06T2207/30108G06T2207/30204

Abstract

Claims (69)

1. A mark quality inspection method, comprising:

acquiring a marked-product image obtained by photographing a marked product upon completion of a marking operation on a product;

identifying an identification code image in the marked-product image;

comparing whether the identification code image is consistent with an identification code mark image corresponding to the product to obtain an image consistency comparison result;

performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image, the mark quality identification result comprising the image consistency comparison result; and

outputting a first indication signal under a condition that the mark quality identification result is normal, wherein the first indication signal is used to indicate that the marked product flows to a process subsequent to the marking operation.

2. The method according to claim 1 , wherein the performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image further comprises:

determining identification code size information of the identification code image; and

comparing the identification code size information against a preset size range to obtain a mark size identification result; wherein

the mark quality identification result comprises the mark size identification result.

3. The method according to claim 1 , wherein the performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image further comprises:

determining mark position information of the identified identification code image in the marked product; and

obtaining a mark position detection result based on the mark position information; wherein

the mark quality identification result comprises the mark position detection result.

4. The method according to claim 3 , wherein the mark position information comprises: a first distance of the identification code image with respect to a first product boundary of the marked product, and a second distance with respect to a second product boundary of the marked product; and

the obtaining a mark position detection result based on the mark position information comprises:

under a condition that the first distance falls within a first preset distance range and the second distance falls within a second preset distance range, determining that the mark position detection result is the mark position being accurate.

5. The method according to claim 1 , wherein the performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image comprises:

identifying a digital code in the marked-product image; and

comparing whether the digital code is consistent with digital code content corresponding to the product to obtain a digital code comparison result; wherein

the mark quality identification result comprises the digital code comparison result.

6. The method according to claim 1 , wherein the method further comprises:

outputting a second indication signal under a condition that the mark quality identification result is abnormal, wherein the second indication signal is used to indicate pulling the marked product off a belt.

7. The method according to claim 6 , wherein the method further comprises:

outputting a third indication signal under a condition that the second indication signal has been consecutively output for a preset number of times, wherein the third indication signal is used to control shutdown of a device.

8. A mark quality inspection apparatus, comprising:

an image acquisition module, configured to acquire a marked-product image obtained by photographing a marked product upon completion of a marking operation on a product;

an image processing module, configured to;

identify an identification code image in the marked-product image;

compare whether the identification code image is consistent with an identification code mark image corresponding to the product to obtain an image consistency comparison result; and

perform image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image, the mark quality identification result comprising the image consistency comparison result; and

a signal output module, configured to output a first indication signal under a condition that the mark quality identification result obtained by the image processing module is normal, wherein the first indication signal is used to indicate that the marked product flows to a process subsequent to the marking operation.

9. The mark quality inspection apparatus according to claim 8 , wherein the image processing module is further configured to:

determine identification code size information of the identification code image; and

compare the identification code size information against a preset size range to obtain a mark size identification result; wherein

the mark quality identification result comprises the mark size identification result.

10. The mark quality inspection apparatus according to claim 8 , wherein the image processing module is further configured to:

determine mark position information of the identified identification code image in the marked product; and

obtain a mark position detection result based on the mark position information; wherein the mark quality identification result comprises the mark position detection result.

11. The mark quality inspection apparatus according to claim 10 , wherein the mark position information comprises: a first distance of the identification code image with respect to a first product boundary of the marked product, and a second distance with respect to a second product boundary of the marked product; and

the image processing module is further configured to determine that the mark position detection result is the mark position being accurate, under a condition that the first distance falls within a first preset distance range and the second distance falls within a second preset distance range.

12. The mark quality inspection apparatus according to claim 8 , wherein the image processing module is further configured to:

identify a digital code in the marked-product image; and

compare whether the digital code is consistent with digital code content corresponding to the product to obtain a digital code comparison result; wherein

the mark quality identification result comprises the digital code comparison result.

13. The mark quality inspection apparatus according to claim 8 , wherein the single output module is further configured to:

output a second indication signal under a condition that the mark quality identification result is abnormal, wherein the second indication signal is used to indicate pulling the marked product off a belt.

14. The mark quality inspection apparatus according to claim 13 , wherein the single output module is further configured to:

output a third indication signal under a condition that the second indication signal has been consecutively output for a preset number of times, wherein the third indication signal is used to control shutdown of a device.

15. A computer device comprising a memory and one or more processors, wherein the memory stores computer-readable instructions, and the computer-readable instructions when executed by the one or more processors, cause the one or more processors to perform:

acquiring a marked-product image obtained by photographing a marked product upon completion of a marking operation on a product;

identifying an identification code image in the marked-product image;

comparing whether the identification code image is consistent with an identification code mark image corresponding to the product to obtain an image consistency comparison result;

performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image, the mark quality identification result comprising the image consistency comparison result; and

outputting a first indication signal under a condition that the mark quality identification result is normal, wherein the first indication signal is used to indicate that the marked product flows to a process subsequent to the marking operation.

16. The computer device according to claim 15 , wherein the computer-readable instructions when executed by the one or more processors, further cause the one or more processors to perform:

determining identification code size information of the identification code image; and

comparing the identification code size information against a preset size range to obtain a mark size identification result; wherein

the mark quality identification result comprises the mark size identification result.

17. The computer device according to claim 15 , wherein the computer-readable instructions when executed by the one or more processors, further cause the one or more processors to perform:

determining mark position information of the identified identification code image in the marked product; and

obtaining a mark position detection result based on the mark position information; wherein

the mark quality identification result comprises the mark position detection result.

18. One or more non-transitory computer-readable storage media storing computer-readable instructions, wherein the computer-readable instructions when executed by the one or more processors, cause the one or more processors to perform:

acquiring a marked-product image obtained by photographing a marked product upon completion of a marking operation on a product;

identifying an identification code image in the marked-product image;

comparing whether the identification code image is consistent with an identification code mark image corresponding to the product to obtain an image consistency comparison result;

performing image identification on the marked-product image to obtain a mark quality identification result of an identification code in the marked-product image, the mark quality identification result comprising the image consistency comparison result; and

outputting a first indication signal under a condition that the mark quality identification result is normal, wherein the first indication signal is used to indicate that the marked product flows to a process subsequent to the marking operation.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (27)