The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2022
Filed:
Oct. 23, 2018
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Mitsubishi Electric Corporation, Tokyo, JP;
Hassan Mansour, Boston, MA (US);
Tim Marks, Newton, MA (US);
Ewa Nowara, Houston, TX (US);
Yudai Nakamura, Tokyo, JP;
Ashok Veeraraghavan, Houston, TX (US);
Mitsubishi Electric Research Laboratories, Inc., Cambridge, MA (US);
Abstract
A remote photoplethysmography (RPPG) system includes an input interface to receive a sequence of measurements of intensities of different regions of a skin of a person indicative of vital signs of the person; a solver to solve an optimization problem to determine frequency coefficients of photoplethysmographic waveforms corresponding to the measured intensities at the different regions, wherein the solver determines the frequency coefficients to reduce a distance between intensities of the skin reconstructed from the frequency coefficients and the corresponding measured intensities of the skin while enforcing joint sparsity on the frequency coefficients; and an estimator to estimate the vital signs of the person from the determined frequency coefficients of photoplethysmographic waveforms.