US 12,283,115 B1
Camera and sensor system for measurement of road surface deflection
Zeeshan Rasheed, Ashburn, VA (US); Khurram Hassan-Shafique, Ashburn, VA (US); Maoxu Li, Ashburn, VA (US); Nicholas Raphael Gans, Plano, TX (US); Cody Lee Lundberg, Burleson, TX (US); and Michael Edward Araujo, Euless, TX (US)
Assigned to Bivateur Research Solutions, Ashburn, VA (US); and Board of Regents, The University of Texas System, Austin, TX (US)
Filed by Novateur Research Solutions, Ashburn, VA (US); and Board of Regents, The University of Texas System, Austin, TX (US)
Filed on Oct. 24, 2024, as Appl. No. 18/926,265.
Application 18/926,265 is a continuation of application No. 18/768,725, filed on Jul. 10, 2024, granted, now 12,159,467.
Int. Cl. G06V 20/56 (2022.01); G06T 17/00 (2006.01)
CPC G06V 20/588 (2022.01) [G06T 17/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of analyzing pavement deflection, the method comprising:
receiving first and second sets of 3D images of a pavement surface, the second set captured at a predetermined distance from the first set;
receiving inertial measurement data synchronized with the 3D images;
compensating for motion artifacts in the 3D images using the inertial measurement data;
generating a first 3D point cloud from the first set of 3D images;
generating a second 3D point cloud from the second set of 3D images;
comparing the first 3D point cloud and the second 3D point cloud to determine pavement deflection;
generating a deflection map based on the determined pavement deflection; and
outputting a visualization of the deflection map.