| 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. |