Query : 2011A&A...531A...9H

2011A&A...531A...9H - Astronomy and Astrophysics, volume 531A, 9-9 (2011/7-1)

Online multi-frame blind deconvolution with super-resolution and saturation correction.


Abstract (from CDS):

Astronomical images taken by ground-based telescopes suffer degradation due to atmospheric turbulence. This degradation can be tackled by costly hardware-based approaches such as adaptive optics, or by sophisticated software-based methods such as lucky imaging, speckle imaging, or multi-frame deconvolution. Software-based methods process a sequence of images to reconstruct a deblurred high-quality image. However, existing approaches are limited in one or several aspects: (i) they process all images in batch mode, which for thousands of images is prohibitive; (ii) they do not reconstruct a super-resolved image, even though an image sequence often contains enough information; (iii) they are unable to deal with saturated pixels; and (iv) they are usually non-blind, i.e., they assume the blur kernels to be known. In this paper we present a new method for multi-frame deconvolution called online blind deconvolution (OBD) that overcomes all these limitations simultaneously. Encouraging results on simulated and real astronomical images demonstrate that OBD yields deblurred images of comparable and often better quality than existing approaches.

Abstract Copyright:

Journal keyword(s): methods: numerical - techniques: image processing - techniques: miscellaneous - atmospheric effects

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
1 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1618 1
2 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2190 0
3 * eps02 Lyr ** 18 44 22.78056 +39 36 45.7851           A6Vn+A7Vn 46 0

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