--- /dev/null
+ snark14.s170426 - A PICTURE RECONSTRUCTION PROGRAM
+
+
+ <*> *******EXAMPLE 4
+
+ <*> STAR PATTERN WITH PSEUDO PROJECTION DATA
+
+ <*> RECONSTRUCTION BY ART
+
+ <*>
+
+ <#> CREATE
+
+ EXAMPLE 4 STAR PATTERN
+
+
+ <#> SPECTRUM MONOCHROMATIC 10
+ energy spectrum is monochromatic at energy level 10
+
+
+ <#> OBJECTS
+ description of objects
+ density at levels
+ numb type x-coord y-coord x-length y-length angle av dens 10
+
+ 1 sect 0.0000 -24.0000 6.0000 24.0000 0.0000 1.0000 1.0000
+
+ 2 sect 21.0000 -12.0000 6.0000 24.0000 60.0000 1.0000 1.0000
+
+ 3 sect 21.0000 12.0000 6.0000 24.0000 120.0000 1.0000 1.0000
+
+ 4 sect 0.0000 24.0000 6.0000 24.0000 180.0000 1.0000 1.0000
+
+ 5 sect -21.0000 12.0000 6.0000 24.0000 240.0000 1.0000 1.0000
+
+ 6 sect -21.0000 -12.0000 6.0000 24.0000 300.0000 1.0000 1.0000
+
+ scale factor multiplying object densities 1.0000
+
+ seed set to 0
+ inhomogeneity set to 0.0000
+
+ <#> PHANTOM AVERAGE 1
+
+ this run will generate a phantom
+ density in each pixel is obtained as the average of 1 x 1 points
+
+
+ <#> 25 PIXELS OF SIZE 2.0
+ picture size 25 x 25, pixel size 2.0000
+
+
+ <#> RAYSUM
+
+ 0.000 seconds phantom creation
+ 0.000 seconds used for processing command crea
+
+
+ <*>
+
+ <#> PICTURE TEST
+
+ EXAMPLE 4 STAR PATTERN
+
+
+ <#> spec mono 10
+ energy spectrum is monochromatic at energy level 10
+
+
+ <#> obje
+ description of objects
+ density at levels
+ numb type x-coord y-coord x-length y-length angle av dens 10
+
+ 1 sect 0.0000 -24.0000 6.0000 24.0000 0.0000 1.0000 1.0000
+
+ 2 sect 21.0000 -12.0000 6.0000 24.0000 60.0000 1.0000 1.0000
+
+ 3 sect 21.0000 12.0000 6.0000 24.0000 120.0000 1.0000 1.0000
+
+ 4 sect 0.0000 24.0000 6.0000 24.0000 180.0000 1.0000 1.0000
+
+ 5 sect -21.0000 12.0000 6.0000 24.0000 240.0000 1.0000 1.0000
+
+ 6 sect -21.0000 -12.0000 6.0000 24.0000 300.0000 1.0000 1.0000
+
+ scale factor multiplying object densities 1.0000
+
+ seed set to 0
+ inhomogeneity set to 0.0000
+
+ <#> phan aver 1
+
+ density in each pixel is obtained as the average of 1 x 1 points
+
+
+ <#> pixe 25 size 2.0000
+ picture size 25 x 25, pixel size 2.0000
+
+ test picture read
+ EXAMPLE 4 STAR PATTERN
+ 0.000 seconds used for processing command pict
+
+
+ <*>
+
+ <#> PROJECTION PSEUDO
+
+ EXAMPLE 4 PSEUDO PROJECTION DATA FOR TWELVE VIEWS
+
+
+
+ <#> GEOMETRY
+
+
+ <#> PARALLEL VARIABLE STRIP
+ rays are parallel with variable spacing between rays
+ data collected along strips
+
+
+
+ <#> RAYS PROGRAM 25 2.0 DETECTOR SPACING AT 2.0
+ number of rays per projection 53
+ snark computed number of rays 53
+ at detector spacing 2.0000
+
+
+ <#> ANGLES 12 EQUALLY SPACED
+ total number of projections 12
+
+ projection angles 0.0000 15.0000 30.0000 45.0000 60.0000 75.0000 90.0000 105.0000 120.0000 135.0000
+ 150.0000 165.0000
+
+
+ <#> MEASUREMENT PERFECT
+ projection data are noiseless
+
+
+ <#> BACKGROUND 50.0
+ at levels
+ 10
+ background absorption 50.0000
+
+ estimate of totlen = 16985.417500
+ estimate of totden = 6066.137812
+ estimate of average density = 0.3571
+ projection data read
+ EXAMPLE 4 PSEUDO PROJECTION DATA FOR TWELVE VIEWS
+ 0.000 seconds used for processing command proj
+
+
+ <*>
+
+ <#> MODE LOWER CONSTRAINT IS SET TO 0.0 UPPER CONSTRAINT IS 1.0
+ lower constraint set to 0.0000
+ upper constraint set to 1.0000
+ 0.000 seconds used for processing command mode
+
+
+ <*>
+
+ <#> SELECT SNARK RAYSEQ
+
+ <#> STEP 3 1
+ sequential ray selection with ray-step 1 and projection-step 3
+ 0.000 seconds used for processing command sele
+
+
+ <*>
+
+ <#> STOP ITERATION 9
+ 9 iterations
+ 0.000 seconds used for processing command stop
+
+
+ <*>
+
+ <#> EXECUTE ART CONTOUR
+
+ EXAMPLE 4 ART RECONSTRUCTION
+
+ <#> 0.5 0.0 1.0
+ reconstruction is contoured after
+
+ last iteration
+
+ threshold = 0.50000 w1 = 0.00000 w2 = 1.00000 w3 = 0.00000
+
+ <#> ART3
+ art3 method
+ relaxation parameter is 1.0
+ norm is 2
+ tolerance is 0.0
+
+ <#> CONSTRAINT BOUND STEPS 204
+ constraint set to boundaries
+ picture is not normalized
+ 204 rays are used for each iteration
+ lower constraint = 0.0000
+ upper constraint = 1.0000
+ algorithm executed in iteration 1
+ 0.001 seconds for the execution of the algorithm
+ iteration 1 completed
+ 0.001 seconds for this iteration
+ algorithm executed in iteration 2
+ 0.000 seconds for the execution of the algorithm
+ iteration 2 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 3
+ 0.000 seconds for the execution of the algorithm
+ iteration 3 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 4
+ 0.000 seconds for the execution of the algorithm
+ iteration 4 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 5
+ 0.000 seconds for the execution of the algorithm
+ iteration 5 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 6
+ 0.000 seconds for the execution of the algorithm
+ iteration 6 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 7
+ 0.000 seconds for the execution of the algorithm
+ iteration 7 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 8
+ 0.000 seconds for the execution of the algorithm
+ iteration 8 completed
+ 0.000 seconds for this iteration
+ algorithm executed in iteration 9
+ 0.000 seconds for the execution of the algorithm
+ reconstruction completed after iteration 9
+ 0.000 seconds for this iteration
+ 0.001 seconds for all iterations
+ 0.002 seconds used for processing command exec
+
+
+ <*>
+
+ <#> END
projects / snark14.git / blobdiff