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Digital Picture Processing, 2nd Edition
book

Digital Picture Processing, 2nd Edition

by Azriel Rosenfeld, Avinash C. Kak
January 2014
Intermediate to advanced content levelIntermediate to advanced
435 pages
18h 42m
English
Morgan Kaufmann
Content preview from Digital Picture Processing, 2nd Edition
8.4 Aliasing Artifacts in Reconstructed Images
383
by multiplying the product of the two FFTs by a Hamming window. When
such a window is incorporated, (47a) may be written as
Qe(m) = τ χ 1¥¥Ί{¥¥Ύ(Ρ
θ
(ητ) with ZP) χ ¥¥T(h(m) with ZP)
χ smoothing window} (47b)
After the filtered projections ζ)
θ
(ητ) are determined with the alternative
implementation presented here, the rest of the procedure for recon-
structing the image is the same as in the preceding subsection. That is, we
use (29) for backprojections and their summation. Again, as before, for a
given (x, y) and 0
f
the argument χ cos 0
f
+ y sin 0
f
may not correspond to
one of the kz at which
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Publisher Resources

ISBN: 9780323139915