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http://dx.doi.org/10.7319/kogsis.2014.22.1.081

A Study on the Improvement classification accuracy of Land Cover using the Aerial hyperspectral image with PCA  

Choi, Byoung Gil (Dept. of Civil and Environmental Engineering, Incheon National University)
Na, Young Woo (Hub-Industry-Academic-Cooperation, Incheon National University)
Kim, Seung Hyun (Sunyoung ENG)
Lee, Jung Il (Dept. of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.22, no.1, 2014 , pp. 81-88 More about this Journal
Abstract
The researcher of this study applied PCA on aerial hyper-spectral sensor and selectively combined bands which contain high amount of information, creating five types of PCA images. By applying Spectral Angle Mapping-supervised classification technique on each type of image, classification process was carried out and accuracy was evaluated. The test result showed that the amount of information contained in the first band of PCA-transformation image was 76.74% and the second accumulated band contained 98.40%, suggesting that most of information were contained in the first and the second PCA components. Quantitative classification accuracy evaluation of each type of image showed that total accuracy, producer's accuracy and user's accuracy had similar patterns. What drew the researcher's attention was the fact that the first and the second bands of the PCA-transformation image had the highest accuracy according to the classification accuracy although it was believed that more than four bands of PCA-transformation image should be contained in order to secure accuracy when doing the qualitative classification accuracy.
Keywords
hyperspectral; sensor; PCA; Supervised classification; Band;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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