Body surface optical imaging for respiratory monitoring
US12220220B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 18, 2020 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | May 16, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0223
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for measuring respiratory parameters of a subject using a range imaging sensor, wherein the method includes: receiving from the range imaging sensor at least one raw image of at least one portion of the torso of the subject, wherein each point of the raw image represents the distance between the range imaging sensor and the subject; generating a surface image of at least one portion of a surface of the torso of the subject by surface interpolation of the raw image; estimating a respiratory signal as a function of time calculated as the spatial average, in a given region of interest (ROI) defined on the torso of the subject, of the differences between the depth values of the surface image at a given time and the depth values of a reference surface image; and estimating a lung volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.