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http://dx.doi.org/10.9717/kmms.2016.19.4.725

Automatic National Image Interpretability Rating Scales (NIIRS) Measurement Algorithm for Satellite Images  

Kim, Jeahee (Dept. of Radio & Information Communications Eng., Chungnam National University)
Lee, Changu (Dept. of Radio & Information Communications Eng., Chungnam National University)
Park, Jong Won (Dept. of Radio & Information Communications Eng., Chungnam National University)
Publication Information
Journal of Korea Multimedia Society / v.19, no.4, 2016 , pp. 725-735 More about this Journal
Abstract
High-resolution satellite images are used in the fields of mapping, natural disaster forecasting, agriculture, ocean-based industries, infrastructure, and environment, and there is a progressive increase in the development and demand for the applications of high-resolution satellite images. Users of the satellite images desire accurate quality of the provided satellite images. Moreover, the distinguishability of each image captured by an actual satellite varies according to the atmospheric environment and solar angle at the captured region, the satellite velocity and capture angle, and the system noise. Hence , NIIRS must be measured for all captured images. There is a significant deficiency in professional human resources and time resources available to measure the NIIRS of few hundred images that are transmitted daily. Currently, NIIRS is measured every few months or even few years to assess the aging of the satellite as well as to verify and calibrate it [3]. Therefore, we develop an algorithm that can measure the national image interpretability rating scales (NIIRS) of a typical satellite image rather than an artificial target satellite image, in order to automatically assess its quality. In this study, the criteria for automatic edge region extraction are derived based on the previous works on manual edge region extraction [4][5], and consequently, we propose an algorithm that can extract the edge region. Moreover, RER and H are calculated from the extracted edge region for automatic edge region extraction. The average NIIRS value was measured to be 3.6342±0.15321 (2 standard deviations) from the automatic measurement experiment on a typical satellite image, which is similar to the result extracted from the artificial target.
Keywords
Image Processing; Satellite Imagery; Remote Sensing;
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