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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
8.6 Reconstruction from Fan Projections 397
where τ is the sampling interval for the projection data. This result says that
the variance of noise at the origin is proportional to the area under the square
of the filter function used for reconstruction. This does not imply that this
area can be made arbitrarily small since any major departure from the
I
w
I
function will introduce spatial distortion in the image even though it
may be less noisy. None of the equations above should be construed to imply
that the variance approaches zero as τ is made arbitrarily small. Note from
Fig. 6 that τ is also the width of the measurement beam. In any practica ...
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Publisher Resources

ISBN: 9780323139915