IP Library Granted Patent US 12,253,463
Granted Patent B2
US 12,253,463 · App. 18/121,057 · Granted Mar 18, 2025

System and method for authenticating and classifying products using hyper-spectral imaging

Inventor: Leslie Young Harvill (Olympia, WA)
G01N21/3577G01N21/33G01N2021/0181G01N2201/0668G01N2201/068
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Quick Facts
Patent No.
US 12,253,463
App. No.
18/121,057
Granted
Mar 18, 2025
Kind
B2
Abstract

In some implementations, a method for authenticating and classifying a set of materials comprises: determining a set of characteristics of light spectra reflected or transmitted by a set of materials when the set of materials is illuminated by a plurality of light wavelengths; constructing one or more classifiers configured to classify each material of the set of materials based on the set of characteristics of the light spectra; using the classifiers, mapping each of the light spectra onto an area of an image sensor; based on the mapping, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the area of the image sensor.

Claims (49)

1. A method for authenticating and classifying a set of materials, the method comprising:

determining a set of characteristics of light spectra reflected or transmitted by a set of materials when the set of materials is illuminated by a plurality of light wavelengths;

constructing one or more classifiers configured to classify each material of the set of materials based on the set of characteristics of the light spectra;

using the classifiers to classify, mapping each of the light spectra onto an area of an image sensor;

based on the mapping of each of the light spectra onto the area of the image sensor, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the area of the image sensor;

wherein the holographic optical element is recorded and used to determine whether the new material matches any material in the set of materials.

2. The method of claim 1 , further comprising: using the holographic optical element to determine whether the new material matches any material in a set of similar materials that are similar to the set of materials.

3. The method of claim 1 , further comprising generating a copy of the holographic optical element by copying the holographic optical element onto the copy of the holographic optical element.

4. The method of claim 3 , further comprising authenticating the new material based on the determining, using the copy of the holographic optical element, whether a match is found between the new material and the set of materials or the set of similar materials.

5. The method of claim 1 , wherein the holographic optical element is generated using a holography approach and a Bragg approach.

6. The method of claim 1 , wherein the input light transmitted through the new material penetrates the new material that is in a liquid form and that is contained within a space between two sheets of glass;

wherein the input light reflected from the new material is reflected off dots included in the holographic optical element; each dot configured to filter a specific wavelength of light;

wherein the input light is recorded by a camera through a lens system of the camera and then recorded onto a charge coupled element of the camera.

7. The method of claim 6 , wherein the camera is a CMOS charge coupled camera and which has a range from an ultraviolet (UV) spectra into a near infrared (NI) spectra;

wherein the camera has a light source that illuminates a light being within the range, and then reads reflection characteristics of the holographic optical element.

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

determining a set of characteristics of light spectra reflected or transmitted by a set of materials when the set of materials is illuminated by a plurality of light wavelengths;

constructing one or more classifiers configured to classify each material of the set of materials based on the set of characteristics of the light spectra;

using the classifiers to classify, mapping each of the light spectra onto an area of an image sensor;

based on the mapping of each of the light spectra onto the area of the image sensor, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the area of the image sensor;

wherein the holographic optical element is recorded and used to determine whether the new material matches any material in the set of materials.

9. The one or more non-transitory computer readable storage media of claim 8 , storing additional instructions for: using the holographic optical element to determine whether the new material matches any material in a set of similar materials that are similar to the set of materials.

10. The one or more non-transitory computer readable storage media of claim 8 , storing additional instructions for: generating a copy of the holographic optical element by copying the holographic optical element onto the copy of the holographic optical element.

11. The one or more non-transitory computer readable storage media of claim 10 , storing additional instructions for: authenticating the new material based on the determining, using the copy of the holographic optical element, whether a match is found between the new material and the set of materials or the set of similar materials.

12. The one or more non-transitory computer readable storage media of claim 8 , wherein the holographic optical element is generated using a holography approach and a Bragg approach.

13. The one or more non-transitory computer readable storage media of claim 8 , wherein the input light transmitted through the new material penetrates the new material that is in a liquid form and that is contained within a space between two sheets of glass;

wherein the input light reflected from the new material is reflected off dots included in the holographic optical element; each dot configured to filter a specific wavelength of light;

wherein the input light is recorded by a camera through a lens system of the camera and then recorded onto a charge coupled element of the camera.

14. The one or more non-transitory computer readable storage media of claim 13 ,

wherein the camera is a CMOS charge coupled camera and which has a range from an ultraviolet (UV) spectra into a near infrared (NI) spectra;

wherein the camera has a light source that illuminates a light being within the range, and then reads reflection characteristics of the holographic optical element.

15. A custom product computer system generator comprising:

a memory unit;

one or more processors; and

a custom product computer storing one or more instructions, which, when executed by one or more processors, cause the one or more processors to perform:

determining a set of characteristics of light spectra reflected or transmitted by a set of materials when the set of materials is illuminated by a plurality of light wavelengths;

constructing one or more classifiers configured to classify each material of the set of materials based on the set of characteristics of the light spectra;

using the classifiers to classify, mapping each of the light spectra onto an area of an image sensor;

based on the mapping of each of the light spectra onto the area of the image sensor, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the area of the image sensor;

wherein the holographic optical element is recorded and used to determine whether the new material matches any material in the set of materials.

16. The custom product computer system generator of claim 15 , storing additional instructions for: using the holographic optical element to determine whether the new material matches any material in a set of similar materials that are similar to the set of materials.

17. The custom product computer system generator of claim 15 , storing additional instructions for: generating a copy of the holographic optical element by copying the holographic optical element onto the copy of the holographic optical element.

18. The custom product computer system generator of claim 17 , storing additional instructions for: authenticating the new material based on the determining, using the copy of the holographic optical element, whether a match is found between the new material and the set of materials or the set of similar materials.

19. The custom product computer system generator of claim 15 , wherein the holographic optical element is generated using a holography approach and a Bragg approach.

20. The custom product computer system generator of claim 15 , wherein the input light transmitted through the new material penetrates the new material that is in a liquid form and that is contained within a space between two sheets of glass;

wherein the input light reflected from the new material is reflected off dots included in the holographic optical element; each dot configured to filter a specific wavelength of light;

wherein the input light is recorded by a camera through a lens system of the camera and then recorded onto a charge coupled element of the camera,

wherein the camera is a CMOS charge coupled camera and which has a range from an ultraviolet (UV) spectra into a near infrared (NI) spectra;

wherein the camera has a light source that illuminates a light being within the range, and then reads reflection characteristics of the holographic optical element.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2023
From: HARVILL, LESLIE YOUNG
To: BOTTLEVIN, INC.
Reel/Frame 062980/0560 →
Continuity (1)
Related Publication 20240310278A1 · Sep 19, 2024
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