US 12,455,394 B1
Techniques for dynamic object detection
William Dean Plummer, Somerset, MA (US); Charles McAlister Marshall, North Andover, MA (US); Francois Berthiaume, Québec (CA); Linda Marchese, Québec (CA); Marc Terroux, Québec (CA); and Alexander Georg Sappok, Newton, MA (US)
Assigned to RaySecur, Inc., Westwood, MA (US)
Filed by RaySecur, Inc., Westwood, MA (US)
Filed on Apr. 17, 2023, as Appl. No. 18/135,511.
Claims priority of provisional application 63/332,458, filed on Apr. 19, 2022.
Int. Cl. G01V 8/00 (2006.01); G01V 8/22 (2006.01); G01V 8/26 (2006.01)
CPC G01V 8/005 (2013.01) [G01V 8/22 (2013.01); G01V 8/26 (2013.01)] 32 Claims
OG exemplary drawing
 
1. An object scanning apparatus, comprising:
a terahertz source for generating a propagated optical beam;
an inspection zone defined by an inspection surface and the optical beam wherein objects interact with the optical beam to create first pass radiation;
a reflecting surface within the inspection zone configured to reflect at least a portion of the optical beam to create second pass radiation within the inspection zone;
at least one imaging sensor configured to collect the first pass radiation and second pass radiation; and
an image processor for taking data from the imaging sensor for the first pass radiation and second pass radiation, and processing the data to determine a characteristic of an object.