Influence of severe vibrations on the visual perception of video sequences

Adrian Stern; E. Fisher; Stanley R. Rotman; Norman S. Kopeika

doi:10.1117/12.409917

15 December 2000 Influence of severe vibrations on the visual perception of video sequences

Adrian Stern, E. Fisher, Stanley R. Rotman, Norman S. Kopeika

Proceedings Volume 4130, Infrared Technology and Applications XXVI; (2000) https://doi.org/10.1117/12.409917
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

There are two kinds of video image sequence distortions caused by vibration of the camera. The first is the vibration of the line-of-sight causing location changes of the scene in successive frames. The second effect is the blur of each frame of the sequence due to frame motion during its exposure. In this work, the relative effects of these two types of degradations on the ability of observers to recognize targets are investigated. This study is useful for evaluating the amount of effort required to compensate each effect. We found that the threshold contrast needed to recognize a target in a vibrating video sequence under certain conditions is more affected by the motion blur of each frame than the oscillation of the line-of-sight. For digital sequence restoration methods, this study determines the required precision of the deblurring and registration processes. It shows that the deblurring process should not be neglected as it often is.

Citation Download Citation

Adrian Stern, E. Fisher, Stanley R. Rotman, and Norman S. Kopeika "Influence of severe vibrations on the visual perception of video sequences", Proc. SPIE 4130, Infrared Technology and Applications XXVI, (15 December 2000); https://doi.org/10.1117/12.409917

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KEYWORDS

Cameras

Video

Eye

Visualization

Image registration

Eye models

Image processing

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