Estimation models of vegetation fractional coverage (VFC) based on remote sensing image at different radiometric correction levels.;

Estimating living vegetation volume from a multiple radiometric correction SPOT 5 Imagery

The relative radiometric correction is the first step of processing and analyzing of multitemporal remote sensing images.

On the basis of deeply studying on CCD remote sensing image radiation correction technology of CBERS-2 satellite,the technology of level 0 image pre-processing,sensor calibration,atmosphere radiation correction,solar irradiation correction are presented.

The automatic detection and radiation correction of a highlighted face area is helpful to analyze and identify human faces correctly in a color image.

TM remote sensing data of September 18,2007 and July 18,2008 were collected in the view of radiation correction theory by first doing remote sensing images radiation correction which can changes DN value to the apparent reflectance,then using NDVI processing to do density partition and classification,and finally getting the vegetation cover information.

The homemade and imported instruments were used to obtain data at Dunhuang radiometric calibration test site at September, 2000.

The techniques perform radiometric calibration by converting the digital number of the Landsat imagery to at-satellite radiance and then to at-satellite reflectance using data normalization method.

Amazon tropical rain forest,due to the constant backscattering coefficient,is widely used for spaceborne SAR(Synthetic Aperture Radar) range pattern measurement and the radiometric calibration of sapceborne SAR images.