US 11,869,206 B2
Controllable laser pattern for eye safety and reduced power consumption for image capture devices
Gianluca Giorgio, Bologna (IT); Mohammad Arrfou, Bologna (IT); Gildo Andreoni, Fanano (IT); and Lorenzo Pagli, Zola Predosa (IT)
Assigned to Datalogic IP Tech S.R.L., Lippo di Calderara di Reno (IT)
Filed by Datalogic IP Tech S.r.l., Lippo di Calderara di Reno (IT)
Filed on Dec. 28, 2021, as Appl. No. 17/646,237.
Prior Publication US 2023/0206480 A1, Jun. 29, 2023
Int. Cl. G06T 7/521 (2017.01); H04N 13/128 (2018.01)
CPC G06T 7/521 (2017.01) [H04N 13/128 (2018.05)] 20 Claims
OG exemplary drawing
 
1. An image acquisition system comprising:
one or more image acquisition subsystems, each of the one or more image acquisition subsystems comprising:
a plurality of laser projectors, each laser projector operable to emit a laser dot pattern including a dot density onto a scene, the scene including one or more objects therein;
at least a first and second image capture device, each device operable to capture one or more images from the scene having the laser dot pattern projected thereupon; and
circuitry components operable to determine from the one or more images depth information for each object of the one or more objects in the scene, the depth information including a distance to the object relative to a position of the plurality of laser projectors,
wherein the circuitry components are further in communication with each laser projector of the plurality of laser projectors, and wherein the circuitry components modulate both an optical power supplied to each laser projector of the plurality of laser projectors and a dot density of the laser dot pattern to adjust an optical power level of the plurality of laser projectors based on the distance to the object relative to a position of the plurality of laser projectors.