Title :
Effects of atmospheric aerosol models on the single scattering point spread function in optical remote sensing
Author_Institution :
Centre for Remote Imaging, Sensing & Processing, Nat. Univ. of Singapore, Singapore
Abstract :
Light scattering by atmospheric aerosols produces blurring effects in remotely sensed images in the visible and near infrared wavelength bands. This blurring effect can be described by an effective scattering point spread function (PSF). In this paper, the single scattering PSF is derived from the radiation transfer equation assuming a plane parallel atmosphere with varying optical properties in the vertical direction. The PSF is computed for a given aerosol model and imaging geometry. The extinction coefficient, single scattering albedo and the scattering phase function are computed from the Mie theory. The effects of three different aerosol models (urban, maritime, continental) on the single scattering PSF are investigated
Keywords :
aerosols; atmospheric light propagation; atmospheric optics; geophysical techniques; light scattering; optical transfer function; remote sensing; Mie theory; aerosol; atmospheric optics; blurring effect; extinction coefficient; geophysical measurement technique; image blur; land surface; light scattering; model; near infrared; optical imaging; plane parallel atmosphere; point spread function; radiation transfer equation; remote sensing; scattering albedo; scattering phase function; single scattering; terrain mapping; visible; Aerosols; Atmosphere; Atmospheric modeling; Atmospheric waves; Equations; Infrared imaging; Light scattering; Mie scattering; Optical scattering; Optical sensors;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.609139
