Abstract
An array architecture for fast reconstruction of an image from its projection data using the Direct Fourier Method, also known as the Fourier Slice Reconstruction Algorithm (FOSRAL) in O(N) time with Givens rotor and primitive ‘multiply and add’ type processing elements as the building block is presented in this paper. It is shown that this array architecture enjoys high performance-cost ratio due to its very limited use of complex multiplier hardware and application of a novel interpolation scheme which is amenable to VLSI implementation as well as restricts aliasing effect within tolerable limit.
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