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@article{ART001456634},
author={Ban, Yong-un and Sang Il Na and 이태호},
title={Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City},
journal={Journal of Environmental Impact Assessment},
issn={1225-7184},
year={2010},
volume={19},
number={3},
pages={297-305}

TY - JOUR
AU - Ban, Yong-un
AU - Sang Il Na
AU - 이태호
TI - Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City
JO - Journal of Environmental Impact Assessment
PY - 2010
VL - 19
IS - 3
PB - Korean Society Of Environmental Impact Assessment
SP - 297
EP - 305
SN - 1225-7184
AB - This study has intended to analyze the nature of the errors that occur as a result of shadows during the process of NDVI calculation using high-resolution satellite images of Cheongju City,in order to calibrate such errors, and to verify the results. This study has calibrated the shadow errors by utilizing the relationship between the Greenness above Bare Soil (GRABS) calculated through Tasseled-Cap transformation and the original NDVI. To verify the accuracy of the results, this study has compared the shadow area extracted by the difference between before and after calibration of NDVI, with the original shadow area. The NDVI value converged on the value of -1.0, representing water, because shadow areas could not accept the reflection value from each band. However, after performing Tasseled-Cap transformation, the NDVI of shadow areas that had converged on -1.0 prior to calibration had increased to a level similar to the NDVI of neighboring areas. In addition, the average NDVI in general had increased from -0.08 to -0.01. Finally, the shadow area drawn out was almost matched to the original one, meaning that the NDVI calibration method employed turned out to be highly accurate in extracting shadow areas.
KW - NDVI;Tasseled-Cap Transformation;GRABS;Regression Analysis
DO -
UR -
ER -

Ban, Yong-un, Sang Il Na and 이태호. (2010). Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City. Journal of Environmental Impact Assessment, 19(3), 297-305.

Ban, Yong-un, Sang Il Na and 이태호. 2010, "Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City", Journal of Environmental Impact Assessment, vol.19, no.3 pp.297-305.

Ban, Yong-un, Sang Il Na, 이태호 "Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City" Journal of Environmental Impact Assessment 19.3 pp.297-305 (2010) : 297.

Ban, Yong-un, Sang Il Na, 이태호. Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City. 2010; 19(3), 297-305.

Ban, Yong-un, Sang Il Na and 이태호. "Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City" Journal of Environmental Impact Assessment 19, no.3 (2010) : 297-305.

Ban, Yong-un; Sang Il Na; 이태호. Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City. Journal of Environmental Impact Assessment, 19(3), 297-305.

Ban, Yong-un; Sang Il Na; 이태호. Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City. Journal of Environmental Impact Assessment. 2010; 19(3) 297-305.

Ban, Yong-un, Sang Il Na, 이태호. Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City. 2010; 19(3), 297-305.

Ban, Yong-un, Sang Il Na and 이태호. "Calibration of NDVI Error at Shadow Areas with GRABS :Focused on Cheong City" Journal of Environmental Impact Assessment 19, no.3 (2010) : 297-305.