Systems and methods for quantitative diagnosis of anemia
US12268498B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 5, 2019 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Oct 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30104
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A smartphone-based hemoglobin (Hgb) assessment application quantitatively analyzes pallor in patient-sourced photos using image analysis algorithms to enable a noninvasive, accurate quantitative smartphone app for detecting anemia. A user takes a photo of his/her fingernail beds using the app and receives an accurate displayed Hgb level. Since fingernails do not contain melanocytes, the primary source of color of these anatomical features is blood Hgb. At the same time, quality control software minimizes the impact of common fingernail irregularities (e.g. leukonychia and camera flash reflection) on Hgb level measurement. Metadata recorded upon capturing the image is leveraged for determining a users' Hgb level thereby eliminating the need for external equipment. A personalized calibration of image data with measured Hgb levels improves the accuracy of the application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.