Flash lidars can produce high-resolution data in all three spatial dimensions. In addition, even low repetition rate lasers result in extensive data sets. The challenge presented by these systems is: “How do we reduce the inherently large sets of data to information that is useful to the human operator.” We discuss both sensor specific and general signal-processing tools developed to render 3D lidar data in a fashion that allows man in the loop identification of targets. Data collected during an airborne field test at Redstone Aresenal Test Area Three in Huntsville using Arete Associates FLASH lidar is used to present specific examples.
Two separate data collections using Arete Associates' FLASH lidar are presented. The hardware and the experimental arrangements are discussed. An airborne data collection over military targets in clear and obscuring camouflage environments provided high-resolution three-dimensional images for combat identification purposes. In the second field test, the sensor was suspended from a crane above the ocean surface to acquire FLASH imagery of anti-landing mines and obstacles in the highly turbid surf zone environment over a wide range of surf zone conditions.
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