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Three-dimensional LOMOPLAN is somewhat like multiple passes
of two-dimensional LOMOPLAN;
i.e., we first LOMOPLAN the (*t*,*x*)-plane for each *y*,
and then we
LOMOPLAN the (*t*,*y*)-plane for each *x*.
Actually, 3-D LOMOPLAN is
a little more complicated than this.
Each LOMOPLAN filter is designed on all the data in a small (*t*,*x*,*y*) volume.

To put the LOcal in LOMOPLAN we use subcubes (bricks).
Recall that we can do 2-D LOMOPLAN with
the prediction-error subroutine
`find_lopef()` .
To do 3-D LOMOPLAN we need to make two calls to subroutine
`find_lopef()`,
one for the *x*-axis in-line planar filters
and one for the *y*-axis crossline filters.
That is what I will try next time
I install this book on a computer with a bigger memory.

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Stanford Exploration Project

4/27/2004