US 12,450,761 B2
Imaging arrangement and corresponding methods and systems for depth map generation
Marcus Jozef Henricus Kessels, Echt (NL)
Assigned to Lumileds Singapore Pte. Ltd., Singapore (SG)
Appl. No. 17/925,573
Filed by LUMILEDS LLC, San Jose, CA (US)
PCT Filed May 14, 2021, PCT No. PCT/US2021/032583
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2021/231947, PCT Pub. Date Nov. 18, 2021.
Claims priority of provisional application 63/025,628, filed on May 15, 2020.
Claims priority of application No. 20187221 (EP), filed on Jul. 22, 2020.
Prior Publication US 2023/0206478 A1, Jun. 29, 2023
Int. Cl. G01S 17/931 (2020.01); B25J 9/16 (2006.01); G01S 7/4863 (2020.01); G01S 17/894 (2020.01); G06T 7/50 (2017.01); G06T 7/70 (2017.01); G06V 10/141 (2022.01); G06V 10/60 (2022.01); G06V 10/74 (2022.01); H05B 45/10 (2020.01)
CPC G06T 7/50 (2017.01) [B25J 9/1664 (2013.01); G06T 7/70 (2017.01); G06V 10/141 (2022.01); G06V 10/60 (2022.01); G06V 10/761 (2022.01); H05B 45/10 (2020.01)] 18 Claims
OG exemplary drawing
 
1. An imaging system comprising:
a single image sensor configured to detect light within a field of view of the single image sensor to provide an image sensor output;
a plurality of LED modules, each of the plurality of LED modules having a distinct angular emission profile within the field of view of the single image sensor and configured to emit light having a distinct wavelength range such that the plurality of LED modules collectively emit light over the entire field of view of the single image sensor, wherein the plurality of LED modules comprises a first LED module having an angular emission profile that decreases monotonically as a function of angle and a second LED module having an angular emission profile that increases monotonically as a function of angle;
a controller configured to control the plurality of LED modules to turn on and off such that only one of the plurality of LED modules emits light at the same time;
a processing unit configured to process the image sensor output to identify an intensity profile for the reflected light from each of the plurality of LED modules; and
a depth map generator configured to determine an angular position of the object based at least on the intensity profile for the reflected light from each of the plurality of LED modules.