A Very Large Scale Integration (VLSI) System For Image Reconstruction From Projections

David J. Skellern

doi:10.1117/12.952283

21 April 1986 A Very Large Scale Integration (VLSI) System For Image Reconstruction From Projections

David J. Skellern

Proceedings Volume 0596, Architectures and Algorithms for Digital Image Processing III; (1986) https://doi.org/10.1117/12.952283
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

An architecture and alforithms for a VLSI computer for back-projection image reconstruction are described. The computer consists of multiple identical back-projection processors connected in a linear array. Image pixels are pumped through the processor array, collecting at each processor a contribution to the image from one of its projections. Given one back-projection processor for each image projection, the entire reconstruction can be performed in a time comparable to that needed for sequential access of all image pixels. Implementation of a MOS VLSI back-projection processor is well advanced with working designs obtained for most processor subsystems. The processor incorporates a linear interpolator to estimate values between projection samples and accommodates non-linearity in the geometrical relationship between an image and its projection.

Citation Download Citation

David J. Skellern "A Very Large Scale Integration (VLSI) System For Image Reconstruction From Projections", Proc. SPIE 0596, Architectures and Algorithms for Digital Image Processing III, (21 April 1986); https://doi.org/10.1117/12.952283

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