Signal processing, image registration, and visualization of FLASH lidar data

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.