Definition of LOMOPLAN in 3-D

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.