US 11,719,822 B2
System and method for generating three-dimensional imagery
Michael J. DeWeert, Kaneohe, HI (US); Brian Chock, Honolulu, HI (US); Jacob D. Garan, Honolulu, HI (US); Reid A. Noguchi, Honolulu, HI (US); Gary Sawai, Wahiawa, HI (US); and Dugan C. Yoon, Honolulu, HI (US)
Assigned to BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed by BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed on Jul. 2, 2021, as Appl. No. 17/366,225.
Prior Publication US 2023/0003889 A1, Jan. 5, 2023
Int. Cl. G01S 17/89 (2020.01); G06T 17/05 (2011.01); G01S 7/484 (2006.01); G01S 17/58 (2006.01)
CPC G01S 17/89 (2013.01) [G01S 7/484 (2013.01); G01S 17/58 (2013.01); G06T 17/05 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An underwater imaging system, the imaging system comprising:
a first laser source to generate a first laser beam pulse, and a second laser beam pulse generated by one of (i) the first laser source and (ii) a second laser source, wherein the first and second laser beams are generated underwater, and the first laser source is adapted to be carried by a submersible platform;
a gating module in operative communication with the first and second laser beam pulses to create a first gate and a second gate, wherein the first gate overlaps the second gate to define an overlap region;
an image sensor in operative communication with the gating module to capture a first image irradiated by the first laser beam pulse at the first gate and a second image irradiated by the second laser beam pulse at the second gate, wherein the image sensor is adapted to be carried by the submersible platform;
a processor to determine whether an object irradiated by one or both of the first laser beam pulse and the second laser beam pulse is within the overlap region and generate a three dimensional (3D) representation of the object in the overlap region; and
wherein the gating module effectuates sequential transmission the first laser beam pulse and the second laser beam pulse for the image sensor to capture the first image at the first gate and the second image at the second gate; wherein the first and second images are at the two different times.