21 September 2004 SAR prescreener enhancement through multi-look processing
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The Army Research Laboratory (ARL) has recently examined single-polarity, synthetic aperture radar (SAR) data collected in spotlight mode at X band as part of an effort to identify land mines in radar imagery. This data set consists of several single-polarization, extremely high-resolution, spotlight-mode SAR images from multiple passes over a common target area that includes various reference reflectors as well as the landmines. In earlier investigations at Ku band, we observed that a multi-look averaging scheme could enhance the contrast between mines and background clutter. In the most recent investigation, we hypothesize that a similar behavior would be present in the X band imagery, and we demonstrate how the enhanced contrast from multi-look processing leads to improved prescreener performance under certain conditions. Results are presented in the form of receiver operating characteristic (ROC) curves for different several different prescreener parameter settings.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kenneth I. Ranney, Kenneth I. Ranney, Hiralal Khatri, Hiralal Khatri, Lam H. Nguyen, Lam H. Nguyen, } "SAR prescreener enhancement through multi-look processing", Proc. SPIE 5415, Detection and Remediation Technologies for Mines and Minelike Targets IX, (21 September 2004); doi: 10.1117/12.542185; https://doi.org/10.1117/12.542185

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