Patent ID: 11925446
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A system for classifying one or more occupants in a vehicle cabin comprising at least one seat, the system comprising:
at least one transmitter configured to transmit a plurality of Radio Frequency (RF) signals;
at least one electromagnetic sensor connected to said at least transmitter, wherein said at least one electromagnetic sensor is configured to provide RF response data;
a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive said RF responses and measure said RF responses; and
a processor connected to said sensor, said processor configured and operable to:
generate at least one 3D (three dimensional) complex image representing multiple seats within the vehicle cabin based on said RF responses;
process one or more consecutive 3D images of said obtained 3D complex images representing multiple seats within the vehicle cabin, by removing a background from 3D images;
filter the 3D complex images representing multiple seats within the vehicle cabin images by removing contribution of at least one of sidelobes, multipath, thermal noise and clutter;
cluster coordinates of voxels in said filtered 3D complex images representing multiple seats within the vehicle cabin;
associate each cluster of voxels in said filtered 3D complex images with a different seat within the vehicle cabin;
analyze the clusters to determine presence of one or more occupants inside the vehicle;
and
classify the one or more occupants based on distribution of points for each cluster in said 3D complex images representing multiple seats within the vehicle cabin and according to said vehicle geometry.