US 12,292,500 B2
People counting based on radar measurement
Raghavendran Vagarappan Ulaganathan, Munich (DE); Andrea Heinz, Munich (DE); and Avik Santra, Munich (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Jun. 17, 2022, as Appl. No. 17/843,322.
Claims priority of application No. 21180394 (EP), filed on Jun. 18, 2021.
Prior Publication US 2022/0404486 A1, Dec. 22, 2022
Int. Cl. G01S 13/89 (2006.01)
CPC G01S 13/89 (2013.01) 21 Claims
OG exemplary drawing
 
17. A device comprising:
a radar sensor configured to transmit radar signals towards a scene and receive reflected radar signals from the scene; and
a processor configured to:
obtain one or more radar measurement frames based on the reflected radar signals, each one of the one or more radar measurement frames including respective data samples acquired by the radar sensor,
for each one of the one or more radar measurement frames,
determine a respective range-doppler image based on the respective data samples of the respective radar measurement frame,
determine a respective 2-D angular intensity map of the scene based on the respective range-doppler image, and
perform a people counting operation based on the one or more 2-D angular intensity maps determined for the one or more radar measurement frames to determine a people count for the scene.