Relation between thermal infrared and visible/near infrared images of ground terrain

Eyal Agassi; Nissim Ben-Yosef

doi:10.1117/1.601141

1 March 1997 Relation between thermal infrared and visible/near infrared images of ground terrain

Eyal Agassi, Nissim Ben-Yosef

Optical Engineering, Vol. 36, Issue 3, (March 1997). https://doi.org/10.1117/1.601141

The mutual relation and the observed correlation between reflective and thermal IR images of ground terrain are presented and discussed. The joint distribution density function of thermal and reflective images and its diurnal behavior are presented and analyzed. An approximated analytic expression of the correlation coefficient between thermal and reflective images derived from the explicit form of the joint distribution function is calculated and presented, but it fails to predict the observed correlation between images in these two bands. A modification of the distribution function to consider the influence of local ground topography in the scene is introduced. The prediction of the modified joint density function and correlation coefficient shows a much better agreement with the experimental data. The meaning and the practical applications of the model and the experimental data are discussed.

Citation Download Citation

Eyal Agassi and Nissim Ben-Yosef "Relation between thermal infrared and visible/near infrared images of ground terrain," Optical Engineering 36(3), (1 March 1997). https://doi.org/10.1117/1.601141

Published: 1 March 1997

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