US 12,298,401 B2
Object recognition by an active optical sensor system
Sergio Fernandez, Bietigheim-Bissingen (DE); Christoph Pfrang, Bietigheim-Bissingen (DE); Viktor Trusov, Bietigheim-Bissingen (DE); and Ali Bassiouny, Bietigheim-Bissingen (DE)
Assigned to VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen (DE)
Appl. No. 17/914,996
Filed by Valeo Schalter und Sensoren GmbH, Bietigheim-Bissingen (DE)
PCT Filed Mar. 22, 2021, PCT No. PCT/EP2021/057177
§ 371(c)(1), (2) Date Sep. 27, 2022,
PCT Pub. No. WO2021/191102, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 10 2020 108 473.0 (DE), filed on Mar. 27, 2020.
Prior Publication US 2023/0152457 A1, May 18, 2023
Int. Cl. G01S 17/89 (2020.01); B60W 60/00 (2020.01); G01S 7/48 (2006.01); G01S 7/4865 (2020.01); G01S 17/93 (2020.01); G01S 17/931 (2020.01)
CPC G01S 17/89 (2013.01) [B60W 60/00 (2020.02); G01S 7/4865 (2013.01); G01S 17/931 (2020.01); B60W 2420/408 (2024.01)] 12 Claims
OG exemplary drawing
 
10. An active optical sensor system, comprising:
a detector unit, which is adapted to register light reflected by an object in an environment of the sensor system and to generate a sensor signal on the basis of the registered light;
a computer unit, which is adapted to determine a first pulse width of a signal pulse of the sensor signal, the first pulse width being established by a predetermined first limit value for an amplitude of the sensor signal; and
wherein the computer unit is adapted to:
determine a second pulse width of the signal pulse, the second pulse width being established by a predetermined second limit value for the amplitude of the sensor signal;
determine a radial distance of the object from the sensor system;
assign the signal pulse to one of at least two categories as a function of at least one predefined parameter of the signal pulse; and
generate a point cloud for object recognition, which contains precisely one entry for the signal pulse, the entry corresponding either to the first pulse width or to the second pulse width as a function of the category of the signal pulse,
wherein the radial distance of the object from the sensor system is determined as a function of the signal pulse, and the signal pulse is assigned to the one of at least two categories as a function of the radial distance.