A new method for suppressing optical turbulence in video

Dalong Li, Russell M. Mersereau, David H. Frakes, Mark J.T. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

The presence of optical turbulence in video acquired by cameras viewing scenes at long distances can contribute significantly to degradation. This problem arises routinely, for example, in astronomy where objects of interest reside beyond the earth's atmosphere. Optical turbulence introduces time-varying perturbations in the images as well as blurring. In this paper, we introduce a method for suppressing the effects of this turbulence to enhance the quality of the observed objects and scenes. The proposed method is based on a new form of adaptive control grid interpolation in which computed motion vectors are used as the basis for turbulence estimation and suppression. In particular, the quasi-periodicities of the turbulent motion are exploited in the algorithm, which allow them to be suppressed while true motion (such as panning and zooming) is preserved.

Original languageEnglish (US)
Title of host publication13th European Signal Processing Conference, EUSIPCO 2005
Pages424-427
Number of pages4
StatePublished - Dec 1 2005
Externally publishedYes
Event13th European Signal Processing Conference, EUSIPCO 2005 - Antalya, Turkey
Duration: Sep 4 2005Sep 8 2005

Publication series

Name13th European Signal Processing Conference, EUSIPCO 2005

Other

Other13th European Signal Processing Conference, EUSIPCO 2005
CountryTurkey
CityAntalya
Period9/4/059/8/05

ASJC Scopus subject areas

  • Signal Processing

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    Li, D., Mersereau, R. M., Frakes, D. H., & Smith, M. J. T. (2005). A new method for suppressing optical turbulence in video. In 13th European Signal Processing Conference, EUSIPCO 2005 (pp. 424-427). (13th European Signal Processing Conference, EUSIPCO 2005).