Non-stationary correction of optical aberrations

Authors:
Christian J. Schuler;Michael Hirsch;Stefan Harmeling;Bernhard Scholkopf
Affiliations:
Max Planck Institute for Intelligent Systems, Tübingen, Germany;Max Planck Institute for Intelligent Systems, Tübingen, Germany;Max Planck Institute for Intelligent Systems, Tübingen, Germany;Max Planck Institute for Intelligent Systems, Tübingen, Germany
Venue:
ICCV '11 Proceedings of the 2011 International Conference on Computer Vision
Year:
2011

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Abstract

Taking a sharp photo at several megapixel resolution traditionally relies on high grade lenses. In this paper, we present an approach to alleviate image degradations caused by imperfect optics. We rely on a calibration step to encode the optical aberrations in a space-variant point spread function and obtain a corrected image by non-stationary deconvolution. By including the Bayer array in our image formation model, we can perform demosaicing as part of the deconvolution.