Radon Optical Processing in Radon Space.
Abstract
The stated goals of the Radon program were: Theoretical investigation of the role of the Radon transform in signal processing, including enumeration of the operations achievable in Radon space. (2) Construction of a practical system for two dimensional spectral analysis and image filtering (3) Proof-of-principle experiments for other processing operations, such as bandwidth compression and calculation of the Wigner distribution function. (4) Determination of the feasibility of Radon-space processing of three dimensional data, emphasizing not only system architecture but also storage media capable of saving rapidly retrieving the requisite data arrays. Several 2D signal-processing operations are discovered susceptible to solution in Radon space. These include the Hartley transform , certain joint coordinate-frequency representations (e.g., the Wigner distribution function and Woodward ambiguity functions), certain algorithms for spectrum estimation (e.g., the periodogram and the Yule Walker autoregressive model), and the cepstrum. Most of these Radon space operations have been demonstrated in computer simulations and some have been performed by means of analog hardware in the hybrid Radon space signal processing system. This system can perform a family of processing operations at about five frames per second, limited by the image-rotation rate. Processing is performed by surface acoustic wave (SAW) filters, and the 2D processed signal is displayed on a CRT. Studies of the feasibility of processing 3 D data in Radon space concentrated primarily on analysis of prospective materials for wavelength multiplexed mass-data storage.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 15, 1986
- Accession Number
- ADA169612
Entities
People
- Harrison H. Barrett
Organizations
- University of Arizona