# US 2018/0024062 A1 · Hyperspectral scanning

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2018/0024062 A1
- Document ID: US20180024062A1
- Status: Published application
- Kind: A1
- Application number: 15/549,159
- Filed: 2015-02-27
- Published: 2018-01-25
- Earliest claimed: 2015-02-27
- Assignees: Hewlett Packard Enterprise Development LP
- Applicants: Hewlett Packard Enterprise Development LP
- Inventors: Charles M SANTORI; James William STASIAK; Garry HINCH
- Web page: https://patentgrep.com/patent/US20180024062A1

## CPC

- G01N 21/6456: {Spatial resolved fluorescence measurements; Imaging}
- G01J 3/2823: {Imaging spectrometer}
- G01N 21/255: {Details, e.g. use of specially adapted sources, lighting or optical systems}
- G01N 21/31: Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry {(G01N21/72 takes precedence)}
- G01N 21/643: {non-biological material}
- G01N 21/645: {Specially adapted constructive features of fluorimeters}
- G06T 7/0004: {Industrial image inspection}
- G07D 7/00: Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D 7/1205: Testing spectral properties
- G07D 7/205: {Matching spectral properties}
- B42D 25/378: Special inks
- G01N 2021/6423: {Spectral mapping, video display}
- G01N 2201/0221: Portable; cableless; compact; hand-held
- G01N 2201/062: LED's
- G06T 2207/10024: Color image
- G06T 2207/30144: Printing quality
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G07D: HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- B42D: BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS

## Abstract

Examples relate to providing hyperspectral scanning of a surface. In some examples, motion capture data of unobstructed portions of the surface are captured, and spectral data of the surface are captured through a slit assembly and diffraction grating. The motion capture data are processed to determine a movement of a scanning device. At this stage, the spectral data are translated and rotated based on the movement of the scanning device to generate images that each correspond to a different color channel.

## Claims

### Claim 1

A system for providing hyperspectral scanning of a surface, comprising:
a camera to obtain a video stream of the surface;
a plurality of motion lights to illuminate unobstructed portions of the surface;
a diffraction grating positioned between the camera and a slit assembly;
the slit assembly including a plurality of light-emitting diodes (LED's) directed at the surface, the slit assembly proximate to the surface and positioned so that the diffraction grating disperses spectral data into the view of the camera; and
a scanning module to:
process motion capture data of the unobstructed portions to determine a movement of the system; and
translate and rotate the spectral data based on the movement of the system to generate a plurality of two-dimensional images that each correspond to a different color channel.

### Claim 2 (depends on 1)

The system of claim 1, wherein the plurality of LED's comprise a plurality of ultraviolet LED's and a plurality of white LED's, and wherein the plurality of ultraviolet LED's are used when the spectral data are captured via fluorescence spectroscopy, and wherein the plurality of white LED's are used when the spectral data are captured via reflection spectroscopy.

### Claim 3 (depends on 2)

The system of claim 2, wherein the plurality of ultraviolet LED's are installed in a first half of the split assembly, and wherein the plurality of white LED's are installed in a second half of the split assembly, and wherein LED light from plurality of LED's reflects off the surface through a slit formed by the first half and the second half.

### Claim 4 (depends on 3)

The system of claim 3, wherein the plurality of motion lights are compartmentalized so that light from the plurality of motion lights does not interfere with the LED light collected through the slit.

### Claim 5 (depends on 4)

The system of claim 4, further comprising a plurality of walls to compartmentalize the plurality of motion lights from a field of view of the camera.

### Claim 6 (depends on 1)

The system of claim 1, wherein the scanning module is further configured to use the plurality of two-dimensional images to verify a printed image on the surface.

### Claim 7

A method for providing hyperspectral scanning of a surface, comprising:
capturing motion capture data of unobstructed portions of the surface;
capturing spectral data of the surface through a slit assembly and diffraction grating;
processing the motion capture data to determine a movement of a scanning device; and
translating and rotating the spectral data based on the movement of the scanning device to generate a plurality of two-dimensional images that each correspond to a different color channel.

### Claim 8 (depends on 7)

The method of claim 7, wherein the slit assembly includes a plurality of ultraviolet light-emitting diodes (LED's), and the spectral data are captured via fluorescence spectroscopy.

### Claim 9 (depends on 7)

The method of claim 7, wherein the slit assembly includes a plurality of white light-emitting diodes (LED's), and the spectral data are captured via reflection spectroscopy.

### Claim 10 (depends on 7)

The method of claim 7, further comprising using the plurality of two-dimensional images to verify a printed image on the surface.

### Claim 11 (depends on 7)

The method of claim 7, further comprising using the plurality of two-dimensional images to determine a color quality of a printed image on the surface.

### Claim 12

A non-transitory machine-readable storage medium encoded with instructions executable by a processor for providing hyperspectral scanning of a surface, the machine-readable storage medium comprising instructions to:
capture motion capture data of unobstructed portions of the surface;
capture spectral data of the surface through a slit assembly and diffraction grating, wherein the slit assembly includes a plurality of light-emitting diodes (LED's) for emitting LED light that is dispersed through the slit assembly into the diffraction grating as spectral data;
process the motion capture data to determine a movement of a scanning device; and
translate and rotating the spectral data based on the movement of the scanning device to generate a plurality of two-dimensional images that each correspond to a different color channel.

### Claim 13 (depends on 12)

The non-transitory machine-readable storage medium of claim 12, wherein the plurality of LED's are a plurality of ultraviolet LED's, and the spectral data are captured via fluorescence spectroscopy.

### Claim 14 (depends on 12)

The non-transitory machine-readable storage medium of claim 12, wherein the plurality of LED's are a plurality of white LED's, and the spectral data are captured via reflection spectroscopy.

### Claim 15 (depends on 12)

The non-transitory machine-readable storage medium of claim 12, wherein the instructions are further to use the plurality of two-dimensional images to verify a printed image on the surface.
