公开(公告)号：US20210116358A1

公开(公告)日：2021-04-22

申请号：US17137393

申请日：2020-12-30

Applicant: Elbit Systems Land and C4I Ltd.

Inventor： Ilya LEIZERSON ,  Adi Yosef Mordechai SUSSHOLZ ,  David STAVITSKY

IPC: G01N21/17 ,  G01N29/24 ,  G01N21/55 ,  G06T7/00 ,  G06T7/246 ,  G06T7/521 ,  G06T7/13

Abstract: A system and a method for sensing an object using two-stage photo-acoustic excitation are provided herein. The method may include: scanning the object at a first resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple first regions on the object to yield multiple first outputs; determining, based on the multiple first outputs, at least one first region of the multiple first regions that includes at least one zone and a specific depth of the at least one zone below a surface of the object; scanning the first region that includes the at least one zone at a second resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple second regions in the at least one first region thereof to yield multiple second outputs; and determining, based on at least one of the multiple second outputs, specified parameters of the at least one zone.