Image reconstruction using the transputer

Abstract

Image reconstruction by computer tomography provides a nonintrusive method of imaging the internal structure of objects. From measurements of radiation (e.g. X-rays or gamma rays) passed through an object, it is possible to reconstruct the internal structure. There is great interest in the potential of such methods in industrial applications but a number of problems need to be solved before these opportunities can be realised. The reconstruction process is computationally intensive and requires imaginative parallel processing algorithms to attain `real-time' performance. The work carried out has involved evaluating how these algorithms can be used in multiprocessor concurrent architectures to obtain rapid image reconstruction. A suitable computer architecture has been simulated in occam. This allows execution on a collection of transputers.