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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
8.3 The Filtered-Backprojection Algorithm
369
radial lines such as in Fig. 10. In order to be able to use (18) one must then
interpolate from these radial points to the points on a square grid. Theo-
retically, one can exactly determine the N
2
coefficients required in (18)
provided as many values of the function F(u, v) are known on some radial
lines [15]. This calculation involves solving a large set of simultaneous
equations, often leading to unstable solutions. It is more common to de-
termine the values on the square grid by some kind of nearest-neighbor
or linear interpolation from the radial points. Since the density of the radial
point ...
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Publisher Resources

ISBN: 9780323139915