Simulating video through turbulence

Kevin McBryde; Kris Gibson

doi:10.1117/12.2026850

25 September 2013 Simulating video through turbulence

Kevin McBryde, Kris Gibson

Proceedings Volume 8874, Laser Communication and Propagation through the Atmosphere and Oceans II; 88740P (2013) https://doi.org/10.1117/12.2026850
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Atmospheric turbulence can cause significant degradation to video over long horizontal paths. The refractive index fluctuations along the path from scene to camera lead to blur, varying across the frame and from frame to frame. Computationally inexpensive methods model this effect with an MTF blur function; however this technique neglects anisoplanatic effects. Wave optics techniques have been developed taking into account anisoplanatism, but ignoring scintillation, and spatial and temporal effects. Since long horizontal paths over varied surfaces (e.g. water to land or vice versa) will encounter varying turbulence strength along the path, the turbulence strength should be defined independently at each phase screen. Also important, turbulence strength can vary over short time scales (<1s), so a physically accurate simulation must allow time-dependent phase screens. We will present results of a wave optics simulation technique that includes these spatial and temporal variations.

The results will provide validation for turbulence removal algorithms.

Citation Download Citation

Kevin McBryde and Kris Gibson "Simulating video through turbulence", Proc. SPIE 8874, Laser Communication and Propagation through the Atmosphere and Oceans II, 88740P (25 September 2013); https://doi.org/10.1117/12.2026850

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