TY - GEN
T1 - Analysis of shadow contrast for synthetic aperture sonar imagery
AU - Cook, Daniel A.
AU - Brown, Daniel
PY - 2010/12/1
Y1 - 2010/12/1
N2 - The contrast, or depth of shadows, in synthetic aperture sonar (SAS) imagery is arguably as important to image interpretation as the focus of the backscattered returns. The maximum contrast that can be achieved is determined by a combination of hardware, software, and environmental parameters. In this paper, the impact of these parameters on shadow contrast is quantified, and the contrast ratio is developed as a metric to predict a system's capacity to form imagery with well-defined shadows. A representative SAS is described, and its contrast ratio is investigated over a limited set of environmental and hardware parameters. This contrast ratio analysis can serve a tool for predicting system performance, determining the best dynamic range for display, and bounding the effects of manufacturing tolerances and motion errors.
AB - The contrast, or depth of shadows, in synthetic aperture sonar (SAS) imagery is arguably as important to image interpretation as the focus of the backscattered returns. The maximum contrast that can be achieved is determined by a combination of hardware, software, and environmental parameters. In this paper, the impact of these parameters on shadow contrast is quantified, and the contrast ratio is developed as a metric to predict a system's capacity to form imagery with well-defined shadows. A representative SAS is described, and its contrast ratio is investigated over a limited set of environmental and hardware parameters. This contrast ratio analysis can serve a tool for predicting system performance, determining the best dynamic range for display, and bounding the effects of manufacturing tolerances and motion errors.
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M3 - Conference contribution
AN - SCOPUS:84871274540
SN - 9781617389573
T3 - Proceedings of the Institute of Acoustics
SP - 68
EP - 74
BT - International Conference on Synthetic Aperture Sonar and Synthetic Aperture Radar 2010, Proceedings of the Institute of Acoustics
T2 - International Conference on Synthetic Aperture Sonar and Synthetic Aperture Radar 2010
Y2 - 13 September 2010 through 14 September 2010
ER -