Influence of DEM and BRDF effects on the radiometric correction of satellite imagery

Rudolf Richter

doi:10.1117/12.312597

2 July 1998 Influence of DEM and BRDF effects on the radiometric correction of satellite imagery

Rudolf Richter

Proceedings Volume 3372, Algorithms for Multispectral and Hyperspectral Imagery IV; (1998) https://doi.org/10.1117/12.312597
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

The calculation of ground reflectance imagery from satellite scenes acquired over mountainous terrain depends on a number of factors. Two factors are considered here: the spatial resolution of the Digital Elevation Model (DEM) and bidirectional reflectance (BRDF) effects. Due to the large range of local solar incidence angles in a rugged terrain a strong departure from the isotropic reflectance behavior is often apparent in the imagery. Simple empirical functions are offered to reduce the BRDF influence for the reflectance image product. DEM errors, an inadequate spatial resolution or a small sub-pixel misregistration between an image pixel and the DEM resolution cell lead to reflectance errors. The magnitude of this error is wavelength-dependent. Some typical configurations are investigated to assess the DEM influence.

Citation Download Citation

Rudolf Richter "Influence of DEM and BRDF effects on the radiometric correction of satellite imagery", Proc. SPIE 3372, Algorithms for Multispectral and Hyperspectral Imagery IV, (2 July 1998); https://doi.org/10.1117/12.312597

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available