公开(公告)号：US20210361195A1

公开(公告)日：2021-11-25

申请号：US17291215

申请日：2019-11-05

Applicant: EMORY UNIVERSITY ,  CHILDREN'S HEALTHCARE OF ATLANTA, INC. ,  GEORGIA TECH RESEARCH CORPORATION, INC. ,  SANGUINA, LLC

Inventor： Robert MANNINO ,  Wilbur LAM ,  Gari CLIFFORD ,  Erika TYBURSKI

IPC: A61B5/1455 ,  G06T7/90 ,  G06T7/11 ,  H04N5/235 ,  A61B5/00 ,  A61B5/145 ,  A61B5/103

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.