METHODS USED IN INCREASED RESOLUTION PROCESSING - Polygon Based Interpolation and Robust Log-polar Based Registration

Stéfan van der Walt, Ben Herbst

Abstract

A polygon-based interpolation algorithm is presented for use in stacking RAW CCD images. The algorithm improves on linear interpolation in this scenario by closely describing the underlying geometry. 25 frames are stacked in a comparison. When stacking images, it is required that these images are accurately aligned. We present a novel implementation of the log-polar transform that overcomes its prohibitively expensive computation, resulting in fast, robust image registration. This is demonstrated by registering and stacking CCD frames of stars taken by a telescope.

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Paper Citation


in Harvard Style

van der Walt S. and Herbst B. (2007). METHODS USED IN INCREASED RESOLUTION PROCESSING - Polygon Based Interpolation and Robust Log-polar Based Registration . In Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, ISBN 978-972-8865-73-3, pages 135-140. DOI: 10.5220/0002060501350140


in Bibtex Style

@conference{visapp07,
author={Stéfan van der Walt and Ben Herbst},
title={METHODS USED IN INCREASED RESOLUTION PROCESSING - Polygon Based Interpolation and Robust Log-polar Based Registration},
booktitle={Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,},
year={2007},
pages={135-140},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002060501350140},
isbn={978-972-8865-73-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,
TI - METHODS USED IN INCREASED RESOLUTION PROCESSING - Polygon Based Interpolation and Robust Log-polar Based Registration
SN - 978-972-8865-73-3
AU - van der Walt S.
AU - Herbst B.
PY - 2007
SP - 135
EP - 140
DO - 10.5220/0002060501350140