Computer-Generated Projections for Simulations
Any new image reconstruction algorithm or indeed any modification of an existing method requires a computer simulation to verify its usefulness. In previous chapters, a number of reconstruction methods have been introduced and in order to facilitate their practical application, we took the opportunity to give their discrete versions. One of the biggest problems when it comes to testing reconstruction algorithms is the difficulty in obtaining a set of projection values measured physically by a CT scanner. Moreover, if we were to use measurements obtained from a scanner, we would really need a set of standard projections in order to compare the different image reconstruction algorithms, particularly as real, physical projections are affected by various types of distortion whose nature and degree are uncertain.
KeywordsProjection System Projection Angle Parallel Projection Standard Projection Image Reconstruction Algorithm
- 1.Jähne B (1991) Digital image processing: concepts, algorithms and scientific applications. Springer, BerlinGoogle Scholar
- 2.Jain AK (1989) Fundamentals of digitals image processing. Prentice-Hall, Englewood CliffsGoogle Scholar
- 4.Kak AC, Roberts B (1986) Image reconstruction from projections. In: Young TY, Fu KS (eds) Handbook of pattern recognition and image processing. Academic Press, New YorkGoogle Scholar
- 6.Rosenfeld A, Kak AC (1982) Digital picture processing. Academic Press, New YorkGoogle Scholar