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Bispectral analysis and recovery of images distorted by a moving water surface

Wen, Zhiying; Lambert, Andrew; Fraser, Donald; Li, Hongdong


We propose a new algorithm to recover a geometrically correct image of an object or scene from a set of images distorted by the wave motion of a water surface. Under mild conditions where the wavy surface normals weakly satisfy a Gaussian distribution, we demonstrate that the geometric distortion can be removed and a corrected image can be recovered. Our method is based on higher-order spectra analysis-in particular, the bispectrum, similar to its use in astronomical speckle imaging. In...[Show more]

CollectionsANU Research Publications
Date published: 2010-11-20
Type: Journal article
Source: Applied optics
DOI: 10.1364/AO.49.006376


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