1 August 1991 Hexagonal sampling and filtering for target detection with a scanning E-O sensor
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Abstract
A simple, practical method for generating an hexagonal sampling lattice is described for an E-O scanning sensor. Matched filtering techniques are developed for hexagonally sampled data. An efficient approximate matched filter is described which uses integer weights and takes advantage of the structure of the data. Relative to this filter, the number of processing operations increases for a rectangular sampling lattice, by a factor of six for an ideal matched filter and by 25 percent for an approximate filter with integer weights.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
I. Sperling, Oliver E. Drummond, Irving S. Reed, "Hexagonal sampling and filtering for target detection with a scanning E-O sensor", Proc. SPIE 1481, Signal and Data Processing of Small Targets 1991, (1 August 1991); doi: 10.1117/12.45676; https://doi.org/10.1117/12.45676
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