An efficient four-connected parallel system for PET image reconstruction

✍ Scribed by Chung-Ming Chen

• Book ID: 104304667
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 581 KB
• Volume: 24
• Category: Article
• ISSN: 0167-8191
• DOI: 10.1016/s0167-8191(98)00068-4

✦ Synopsis

In this paper, we present an ecient parallel system with an interconnection network customized for Positron Emission Tomography (PET) image reconstruction. The proposed parallel reconstruction system has two distinguished features. On feature is that the interconnection network is optimal for both ®ltered backprojection and EM algorithms, rather than only for one of them. The other feature is that with only four-connectivity in contrast to log N-connectivity for a hypercube, the proposed parallel algorithms may accomplish the same performance in terms of order statistics as achieved by the optimal algorithms on a hypercube. The proposed parallel system has been realized using transputers.