A new article is available in IPOL: http://www.ipol.im/pub/art/2013/77/
Recovering the Subpixel PSF from Two Photographs at Different Distances
by Mauricio Delbracio, Andrés Almansa, Pablo Musé
Image Processing On Line, vol. 2013, pp. 232--241.
http://www.ipol.im/pub/art/2013/77/
Abstract
In most typical digital cameras, even high-end digital single lens
reflex ones (DSLR), the acquired images are sampled at rates below the
Nyquist critical rate, causing aliasing effects. In this work we
describe a new algorithm for the estimation of the point spread function
(PSF) of a digital camera from aliased photographs, that achieves
subpixel accuracy. The procedure is based on taking two parallel
photographs of the same scene, from different distances leading to
different geometric zooms, and then estimating the kernel blur between them.
--
IPOL - Image Processing On Line - http://ipol.im/
contact [email protected] - http://www.ipol.im/meta/contact/
news+feeds twitter @IPOL_journal - http://www.ipol.im/meta/feeds/
announces [email protected] - http://tools.ipol.im/mm/announce/
discussions [email protected] - http://tools.ipol.im/mm/discuss/
--
IPOL - Image Processing On Line - http://ipol.im/
contact [email protected] - http://www.ipol.im/meta/contact/
news+feeds twitter @IPOL_journal - http://www.ipol.im/meta/feeds/
announces [email protected] - http://tools.ipol.im/mm/announce/
discussions [email protected] - http://tools.ipol.im/mm/discuss/
