Patents
US 10652484 B1: Method to obtain data cubes of low intensity intrinsic spectral images when imaging under high illumination conditions without the use of filters
- Granted
- 2020-05-12
- Filed
- 2019-10-18 application 16657937
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The invention provides a method of obtaining data cubes such that elimination of the irrelevant portion of the illumination reveals the low intensity intrinsic spectral components. The method obtains target and reference data cubes using a single camera and of a single field of view so that low-level intrinsic spectral components may be detected and enhanced under conditions of high illumination intensity without the use of filters. Two exposures in rapid succession of the same field of view at the same camera settings are taken, one exposure of the target is taken under coherent conditions where the field of view is in focus, and the second exposure is of the same field of view taken under non-coherent conditions where the target is defocused such that it has no discernible spatial features in the field of view. Residual spectra previously determined is added to the defocus spectra in the defocus data cube of the target of interest resulting in an adjusted reference spectra, which in turn is subtracted from the corresponding focused spectra in the focused data cube of the target of interest resulting in a focused target data cube each of whose pixels is associated with its intrinsic spectrum.
Source: PVGPATDIS, file of 2026-04-10 (ipg200512.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Center for Quantitative Cytometry 12 patents | US company or organization | San Juan, PR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Abraham Schwartz | San Juan, PR | 24 | PVGPATDIS, file of 2026-04-10 | |
| Philip Sherman | Cleveland, OH | 6 | PVGPATDIS, file of 2026-04-10 | |
| Adolfas K. Gaigalas | Riviera Beach, FL | 2 | PVGPATDIS, file of 2026-04-10 | |
| Peter Ingram | Raleigh, NC | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04N | Pictorial communication, e.g. television | H04N25/534 | PVGPATDIS, file of 2026-04-10 |
| G01J | Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry | G01J3/0264 | PVGPATDIS, file of 2026-04-10 |
| G06T | Image data processing or generation, in general | G06T7/80 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-04-07 | Assignment Assignment of assignor's interest | SCHWARTZ, ABRAHAM signed 2020-03-30 GAIGALAS, ADOLFAS signed 2020-03-31 SHERMAN, PHILIP signed 2020-04-02 INGRAM, PETER signed 2020-04-04 | CENTER FOR QUANTITATIVE CYTOMETRY SAN JUAN, PR | 52327/298 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.