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http://dx.doi.org/10.7780/kjrs.2011.27.5.587

Development of a Natural Target-based Edge Analysis Method for NIIRS Estimation  

Kim, Jae-In (Image Engineering lab, Inha University)
Kim, Tae-Jung (Image Engineering lab, Inha University)
Publication Information
Korean Journal of Remote Sensing / v.27, no.5, 2011 , pp. 587-599 More about this Journal
Abstract
As one measure of image interpretability, NIIRS(National Imagery Interpretability Rating Scale) has been used. Unlike MTF(Modulation Transfer Function), SNR(Signal to Noise Ratio), and GSD(Ground Sampling Distance), NIIRS can describe the quality of overall image at user's perspective. NIIRS is observed with human observation directly or estimated by edge analysis. For edge analysis specially manufactured artificial target is used commonly. This target, formed with a tarp of black and white patterns, is deployed on the ground and imaged by the satellite. Due to this, the artificial target-based method needs a big expense and can not be performed often. In this paper, we propose a new edge analysis method that enables to estimate NIIRS accurately. In this method, natural targets available in the image are used and characteristics of the target are considered. For assessment of the algorithm, various experiments were carried out. The results showed that our algorithm can be used as an alternative to the artificial target-based method.
Keywords
NIIRS; ESF; Natural target; Image quality;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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