Title :
A Radon transform computer for multidimensional signal processing
Author :
Azevedo, S.G. ; Brase, James M. ; Martz, Harry E. ; Jain, Anil K. ; Current, K.W. ; Hurst, Paul J.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
A high-speed Radon transform computer (RTC) has been designed and simulated that operates on the principles of the parallel projection pipeline engine (PPPE) processor suggested by J.L.C. Sanz, et al. (1988). The computer consists of an array of identical processing elements with fast communication links to each of its neighbors and uses forward- and back-projection formulas tests linear interpolation. Simulation and experimental timing tests have been performed on both a systolic array of 64 transputer processors and on arrays of commercial DSP (digital signal processor) chips. A custom VLSI implementation is currently under design which is expected to perform forward and inverse transforms of 512 by 512 images at or near video rates
Keywords :
VLSI; computerised signal processing; digital signal processing chips; parallel machines; pipeline processing; transforms; DSP chips; Radon transform computer; back-projection formulas tests; communication links; custom VLSI; digital signal processor; experimental timing tests; forward projection formula; forward transform; inverse transforms; multidimensional signal processing; parallel projection pipeline engine; processing elements; simulation; systolic array; transputer processors; video rates; Computational modeling; Computer simulation; Concurrent computing; Engines; Interpolation; Multidimensional signal processing; Performance evaluation; Pipelines; Testing; Timing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266714
