Abstract
In this paper, a general and inclusive framework for understanding and characterizing the atmospheric effects in the thermal infrared on imaging systems is presented. This includes separation of the atmospheric distortions to their main two ingredients: optical turbulence, and scattering and absorption by atmospheric particulates. A basic and correct understanding of those effects enables the development of prediction models for the atmospheric turbulence and aerosol MTFs. Here, both models are implemented for real-time thermal image restoration, with the prior knowledge of standard meteorological parameters, and specifications of the imaging system. Examples of such restorations are presented and the uniqueness of the restoration method is discussed. In addition, based on the Johnson chart criteria, object resolution probabilities are discussed with the inclusion of atmospheric degradation of the received image with and without subsequent image restoration. The most important conclusion is that knowledge of the expected atmospheric MTF is crucial for the system designer.
Original language | English |
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Pages (from-to) | 366-385 |
Number of pages | 20 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 2268 |
DOIs | |
State | Published - 14 Sep 1994 |
Event | Infrared Spaceborne Remote Sensing II 1994 - San Diego, United States Duration: 24 Jul 1994 → 29 Jul 1994 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering