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http://dx.doi.org/10.7319/kogsis.2016.24.1.121

Accuracy Assessment of Supervised Classification using Training Samples Acquired by a Field Spectroradiometer: A Case Study for Kumnam-myun, Sejong City  

Shin, Jung Il (Geostory Inc., R&D center)
Kim, Ik Jae (Geostory Inc., R&D center)
Kim, Dong Wook (Geostory Inc., R&D center)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.24, no.1, 2016 , pp. 121-128 More about this Journal
Abstract
Many studies are focused on image data and classifier for comparison or improvement of classification accuracy. Therefore studies are needed aspect of the training samples on supervised classification which depend on reference data or skill of analyst. This study tries to assess usability of field spectra as training samples on supervised classification. Classification accuracies of hyperspectral and multispectral images were assessed using training samples from image itself and field spectra, respectively. The results shown about 90% accuracy with training sample collected from image. Using field spectra as training sample, accuracy was decreased 10%p for hyperspectral image, and 20%p for multispectral image. Especially, some classes shown very low accuracies due to similar spectral characteristics on multispectral image. Therefore, field spectra might be used as training samples on classification of hyperspectral image, although it has limitation for multispectral image.
Keywords
Supervised Classification; Accuracy; Training Sample; Field Spectra;
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Times Cited By KSCI : 5  (Citation Analysis)
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