A note on Unser-Zerubia generalized sampling theory applied to the linear interpolator

A.J.E.M. Janssen, A.A.C.M. Kalker

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Samenvatting

In this correspondence, we calculate the condition number of the linear operator that maps sequences of samples f(2k), f(2k+a), k¿Z of an unknown continuous f¿L2 (R) consistently (in the sense of the Unser-Zeruhia generalized sampling theory) onto the set of continuous, piecewise linear functions in L2(R) with nodes at the integers as a function of a¿(0,2). It turns out that the minimum condition numbers occur at a=v2/3 and a=2-v2/3 and not at a=1 as we might have expected. The theory is verified using the example of video deinterlacing
Originele taal-2Engels
Pagina's (van-tot)2332-2335
Aantal pagina's4
TijdschriftIEEE Transactions on Signal Processing
Volume47
Nummer van het tijdschrift8
DOI's
StatusGepubliceerd - 1999

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