A New Spectral Index for Extraction of Built-Up Area Using Landsat-8 Data
2015
Bouzekri, Sara | Lasbet, Abdel Aziz | Lachehab, Ammar
This research paper presents development of a new spectral index, it was proposed to extract the built-up area from medium spatial resolution satellite imagery data; a Landsat Operational Land Imager, and the Thermal Infrared Sensor “OLI_TIRS”. The newly developed spectral index was derived from Band ratios, it was compared with four previously used spectral indices; the Band Ratio for Built-up Area (BRBA), the Normalized Built-up Area Index (NBAI), the New Built-up Index (NBI) and the Normalized Built-up Index (NDBI). Indices were applied to extract built- up area of Djelfa city, South Algiers, in the central part of North Algeria. The results indicated that newly developed spectral index for extract the built-up area, using overall accuracy and kappa coefficient, are superior as compared to ones of the other spectral indices.
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