Title :
Using Image Deconvolution to Increase the Ability to Detect Stars and Faint Orbital Objects in CCD Imaging
Author :
Núñez, Jorge ; Fors, Octavi ; Prades, Albert
Author_Institution :
Dept. d´´Astron. i Meteorologia, Univ. de Barcelona, Barcelona, Spain
Abstract :
In this paper we show how the techniques of image deconvolution can increase the ability to detect faint stars or faint orbital objects (small satellite and space debris) in CCD images. In the case of faint stars, we show that this benefit is equivalent to double the quantum efficiency of the CCD detector or to increase the effective telescope aperture by up to 40% without decreasing the astrometric precision or introducing artificial bias. In the case of orbital objects, the deconvolution technique can double the signal to noise ratio helping to discover and control dangerous objects as space debris or lost satellites.
Keywords :
CCD image sensors; artificial satellites; astronomical image processing; astronomical telescopes; object detection; space debris; stars; CCD detector; CCD imaging; artificial bias; astrometric precision; dangerous object discovery; faint orbital object detection; faint star detection; image deconvolution; lost satellite; signal-to-noise ratio; space debris; telescope aperture; Charge coupled devices; Convolution; Deconvolution; Detectors; Equations; Object detection; Optical imaging; Optical noise; Satellites; Space debris; Image deconvolution; Image processing; faint stars; space debris; wavelet transform;
Conference_Titel :
Digital Image Processing, 2009 International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-0-7695-3565-4
DOI :
10.1109/ICDIP.2009.12