Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery
Abstract
Described herein are various technologies relating to constructing a statistically-normalized coherence (SNC) image. A plurality of synthetic aperture radar (SAR) images of a scene are generated based upon radar signals directed towards and reflected off of the scene, and a plurality of coherence change detection (CCD) images of the scene are generated based upon the SAR images. The CCD images are registered with one another, and mean and variance are computed on a pixel-wise basis. A new CCD image is subsequently received, and registered with the plurality of CCD images. The SNC image is generated based upon the computed mean and variance values for each pixel in the registered CCD images, and further based upon values of pixels in the new CCD image. The SNC image identifies locations in the scene where anomalous activity is represented in the new CCD image.
- Inventors:
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1632440
- Patent Number(s):
- 10,535,127
- Application Number:
- 15/812,238
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/14/2017
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING; 47 OTHER INSTRUMENTATION
Citation Formats
Simonson, Katherine M., Lizarraga, Ivan, and Perkins, David Nikolaus. Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery. United States: N. p., 2020.
Web.
Simonson, Katherine M., Lizarraga, Ivan, & Perkins, David Nikolaus. Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery. United States.
Simonson, Katherine M., Lizarraga, Ivan, and Perkins, David Nikolaus. 2020.
"Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery". United States. https://www.osti.gov/servlets/purl/1632440.
@article{osti_1632440,
title = {Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery},
author = {Simonson, Katherine M. and Lizarraga, Ivan and Perkins, David Nikolaus},
abstractNote = {Described herein are various technologies relating to constructing a statistically-normalized coherence (SNC) image. A plurality of synthetic aperture radar (SAR) images of a scene are generated based upon radar signals directed towards and reflected off of the scene, and a plurality of coherence change detection (CCD) images of the scene are generated based upon the SAR images. The CCD images are registered with one another, and mean and variance are computed on a pixel-wise basis. A new CCD image is subsequently received, and registered with the plurality of CCD images. The SNC image is generated based upon the computed mean and variance values for each pixel in the registered CCD images, and further based upon values of pixels in the new CCD image. The SNC image identifies locations in the scene where anomalous activity is represented in the new CCD image.},
doi = {},
url = {https://www.osti.gov/biblio/1632440},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 14 00:00:00 EST 2020},
month = {Tue Jan 14 00:00:00 EST 2020}
}
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