环形移位悬浮存储器体系并行CT图象重建系统

Parallel processing system for fast 3D-CT image reconstruction by circular shifting float memory

针对三维计算机层面成象（ＣＴ）图象重建所必须的巨大运算量，提出了一种采用多处 理器并行处理技术实现三维ＣＴ高速图象重建的技术方案：“环形移位悬浮存储器”体系并行 结构，并分析了三维ＣＴ图象重建实现并行的原理，“环形移位悬浮存储器”并行处理系统的体 系结构，以及理论结果。

Long time required to obtain an image has been one of the major drawbacks associated with computerized tomography (CT ) technique. Therefore, researching new technique used in CT is one of the most important directions. According to the need and characteristic of 3D-CT image reconstruction, this paper puts forward a parallel processing system for fast 3D-CT image reconstruction by circular shifting float memory architecture. This is a structure that allows for linear increase in computation speed with increased number of processors. The schematic analysis for 3D-CT image reconstruction, parallel processing architecture and theoretical results are described.