Comparison of delta Eddington model calculations of contrast to measurements

Patti S. Gillespie

doi:10.1117/1.1645255

1 March 2004 Comparison of delta Eddington model calculations of contrast to measurements

Patti S. Gillespie

Optical Engineering, Vol. 43, Issue 3, (March 2004). https://doi.org/10.1117/1.1645255

Various atmospheric properties can impact sensor performance modeling. Transmission, visibility, and contrast can be used in relatively simple expressions to summarize the impact of the atmosphere on static images. Transmission and contrast can be used together in an expression called the sky-to-ground ratio. Experimental measurements of radiance and imagery are used to assess the applicability of the delta Eddington radiative transfer approximation for estimation of apparent contrast and sky-to-ground ratio. The experiments were performed in southern New Mexico near the autumnal equinox. Delta Eddington calculations are made for two types of aerosol phase functions: Henyey-Greenstein and Deirmendjian haze. Comparisons also include computations from a much simpler radiative transfer model, the Huschke model. These experiments support the use of a relatively simple contrast model that more accurately reflects nature than more empirical models.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Patti S. Gillespie "Comparison of delta Eddington model calculations of contrast to measurements," Optical Engineering 43(3), (1 March 2004). https://doi.org/10.1117/1.1645255

Published: 1 March 2004

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