US 12,251,206 B2
Method, system, and computer program product for automatic multi-object localization and/or vital sign monitoring
Yiting Lu, Delft (NL); and Marco Mercuri, Eindhoven (NL)
Assigned to Stichting IMEC Nederland, AE Eindhoven (NL)
Filed by Stichting IMEC Nederland, Eindhoven AE (NL)
Filed on Mar. 8, 2021, as Appl. No. 17/195,634.
Claims priority of application No. 20161699 (EP), filed on Mar. 9, 2020; and application No. 20178419 (EP), filed on Jun. 5, 2020.
Prior Publication US 2021/0275035 A1, Sep. 9, 2021
Int. Cl. A61B 5/024 (2006.01); G16H 10/60 (2018.01); G16H 40/60 (2018.01); G16H 50/30 (2018.01); G06F 17/14 (2006.01)
CPC A61B 5/024 (2013.01) [G16H 10/60 (2018.01); G16H 40/60 (2018.01); G16H 50/30 (2018.01); G06F 17/142 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for automatic multi-object localization and/or vital sign monitoring, the method comprising:
transmitting a radar signal;
receiving a corresponding transmitted radar signal in order to form a corresponding observation matrix (X);
reducing noise by applying singular value decomposition to the observation matrix (X);
processing the result of the singular value decomposition by an independent component analysis in order to estimate corresponding sources (Ŝ), wherein each source is an observed source of vital sign information;
estimating propagation channels (H) of the estimated sources (Ŝ) by minimizing corresponding residual error (∥X−HŜ∥22) using the observation matrix (X) and the estimated sources (Ŝ), wherein each propagation channel is a representation of how a signal is transmitted from the corresponding source to the receiver; and
locating the respective objects using the estimated sources (Ŝ) and estimated propagation channels (H).