CAT scan pictures from my simulator




The reconstuction was done using Algebratic Reconstruction Technique (ART)


Original Sample: Array of 50x50 pixels.





After n projections. Each Loop contains 5000 (2x50x50) projections, which is the number of rays traced through the sample image.


n = 1, 19.2% error
Loop = 0.00

n = 10, 19.2% error
Loop = 0.00

n = 40, 17.7% error
Loop = 0.01

n = 73, 16.3% error
Loop = 0.02

n = 150, 15.5% error
Loop = 0.03

n = 200, 15.2% error
Loop = 0.04

n = 250, 14.3% error
Loop = 0.05

n = 300, 13.8% error
Loop = 0.06

n = 384, 13.4% error
Loop = 0.08

n = 574, 12.7% error
Loop = 0.12

n = 810, 12.0% error
Loop = 0.16

n = 1134, 11.3% error
Loop = 0.23

n = 1284, 10.8% error
Loop = 0.27

n = 1490, 10.2% error
Loop = 0.30

n = 1776, 9.7% error
Loop = 0.36

n = 1946, 9.2% error
Loop = 0.39

n = 2289, 8.7% error
Loop = 0.46

n = 3371, 7.4% error
Loop = 0.67

n = 4048, 6.7% error
Loop = 0.81

n = 4917, 6.0% error
Loop = 0.98

n = 9871, 3.9% error
Loop = 1.97

n = 17105, 2.9% error
Loop = 3.42

n = 24993, 2.3% error
Loop = 4.99

n = 35208, 1.9% error
Loop = 7.04



Back to My Main Homepage Created: Apr 5, 1998