USA As Represented by Secretary of the Navy

Eric C Hallenborg

Heidi L Buck

Bryan D Bagnall

John Stastny

John Stephen deGrassie

Corey A Lane

Joshua S Li

A method and system are provided for processing maritime video data to improve processing time and reduce the risk of false detection. Video data input may be received from satellites, aircrafts, UAVs and other aerial vehicles. The method and system create annotated video output files indicating the location of tracked anomalies. The method and system perform an anomaly detection function on each data frame within the video input, identify anomalous regions within each data frame, and identify clusters. The method and system then perform an algorithm to discard clusters which do not meet threshold criteria to reduce the risk of false detection, as well as employ a horizon detection algorithm to eliminate superfluous image data unrelated to tracking maritime targets.

System for tracking maritime domain targets from full motion video

Systems and methods for determining the speed of a vessel from an overhead image of the vessel's wake can include the initial step of defining a cusp line for the wake. A representative line segment from the defined cusp line that is suitable for building an image intensity profile for the image can be selected. Once the intensity profile is built along the line segment, the wake wavelength &#x3bb;from the image intensity profile can be found by measuring the distance between successive points of intensity maxima (or successive intensity minima points) along the line segment. Once &#x3bb;is found, the vessel speed can be determined from the images according to the formula &#x3bd;=&#x221a;{square root over (1.352*&#x3bb;)}. The systems and methods can be practiced using any overhead imagery systems that display a vessel's wake, including synthetic aperture radar (SAR) and electro-optical (EO) overhead imagery systems.

System and method for inferring vessel speed from overhead images

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San Diego, CA, United States of America

Eric C Hallenborg