Collection of two choosen best movies
How to choose visualization method?
See collection of all prepared here movies (223 Kb)
Compare these images with usual pseudoprojections
of the same reconstracted 3D image.

There are 20 projections for each 3D Laplacian image (3DLi), with equatorial scheme for observing, from Phi=0⁰, with step equals to 18⁰, so as 21st view should be 360⁰ or equally 0⁰.

Here we show visualizations of projections aimed to choose parameters of projections' calculations and of visualization itself for better quality.

A First frame of the color movie (33Kb) for exact model D First frame of the gray movie (19Kb) for this model (negative, lsign=1) G First frame of the gray movie (19Kb) for this model, inverted palette (positive, lsign=0); B 6th frame of it E 6th frame H 6th frame C 7th frame F 7th frame I 7th frame

Fig. 1 Laplacian of exact phantom No.62 Choosing of the palette: positive (case G) is the best choise (lsign=0); (here Lzer=2, so the image is a projection of Laplacian's module);

Laplacian for reconstracted tomogram

All next images are for one 3D reconstruction: s62p41c.dat, i.e. scheme "cross"-80, method (b) (see LAT-3 page).

A movie s62c1nd (33Kb) (ordinary Laplasian, Lzer3=0, global scale); other cases: local scale (gray)(14Kb), global scale (13Kb), inverted palette (13Kb), B movie s62c2nc (18Kb) (only positive part, Lzer3=1); also two other palettes: na (37Kb) and nb (36Kb); C gray movie s62c3na (18Kb) (both parts - module, Lzer3=2); D color movie s62c3nb (37Kb) (both parts - module, Lzer3=2);

Fig. 2 Laplacian of reconstructed tomogram for phantom No.62 Changes of Lzer parameter; the best choise seems to be Lzer=2, projection for module of Laplacian; Fig. 3 Comparision of Laplacians for reconstructed (upper row, Fig.2C) and exact (lower row, Fig.1G,H) tomograms Collection of two movies

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©V.Pickalov