Patent · US Active

Polarization change detection

US10620051B2 · kind B2 · utility

5Cited by

0References

20Claims

0Family size

Assignee

BAE Systems Information and Electronic Systems Integration Inc. · US

Inventors

Andrew N. Acker · Honolulu, US
Michael J. DeWeert · Kaneohe, US

Key dates

Filing date	Sep 19, 2018
Grant date	Apr 14, 2020
Priority date	—
Expiry date	Dec 21, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/217
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An object detection system uses a change in a linear polarization statistic between a first image at a first time and a second image at a second time to determine the presence or the likelihood of an object beneath a surface. The presence of the object may be determined by regions of anomalously high changes in the polarization statistic. The system may use a polarization change detection detector which may simultaneously capture images in multiple polarization channels. Further, the polarization change detection detector may be coupled with a laser interferometry system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.