NDLI: Radiometric Comparison between GeoEye-1 and WorldView-2 Panchromatic and Multispectral Imagery

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Radiometric Comparison between GeoEye-1 and WorldView-2 Panchromatic and Multispectral Imagery

Content Provider	Semantic Scholar
Author	Aguilar, Manuel A. Saldaña, María Del Mar Aguilar, Fernando J. Fernández, Ismael
Copyright Year	2013
Abstract	Nowadays the couple of commercial very high resolution (VHR) satellites more innovative and unexplored are GeoEye-1 and WorldView-2, launched in September 2008 and October 2009 respectively. GeoEye-1 is currently the commercial satellite with the highest geometric resolution for panchromatic (PAN) and multispectral (MS) imagery, i.e. 0.41 m GSD (Ground Sample Distance) at nadir for PAN imagery and 1.65 m GSD for MS images, including the four classic bands: blue, green, red and near infrared (B, G, R, Nir). On the other hand WorldView-2, with 0.46 m and 1.84 m nominal resolution at nadir in PAN and MS images respectively, presents improved multispectral characteristics, since it includes four newly added bands such as coastal (C), yellow (Y), red edge (Re) and near infrared-2 (Nir2). The images from these sensors are often used to produce orthoimages, digital elevation models (DEMs), digital surface models (DSMs) and land-cover and land-use maps by means of remote sensing classification. In this way, the importance of the radiometric characteristics of the VHR imagery on the accuracy of these products has been already contrasted. In this work, the radiometric characteristics of several PAN and MS Geo images from GeoEye-1 have been compared over the same working area with another Ortho Ready Standard Level2A (ORS2A) PAN and MS images from WorldView-2. Both Geo and ORS2A products are radiometrically corrected and projected to a plane with constant height having nearly the same processing level. However, the radiometric characteristic turned out to be very different.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://w3.ual.es/Proyectos/GEOEYE1WV2/index_archivos/Manuscript_INGEGRAF_2013_MAAT.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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