1. A Radon transform computer for multidimensional signal processing
- Author
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Harry E. Martz, James M. Brase, Anil K. Jain, Stephen G. Azevedo, K.W. Current, and Paul J. Hurst
- Subjects
Digital signal processor ,Radon transform ,business.industry ,Computer science ,Pipeline (computing) ,Transputer ,Systolic array ,Image processing ,Parallel computing ,Linear interpolation ,Computational science ,Multidimensional signal processing ,business ,Digital signal processing ,Interpolation - 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. >
- Published
- 2003
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