Optical/Digital Analyzer Of Fe2O3, FeO Substrate By Fourier Techniques
Abstract
An optical/digital approach to the classification of small quasicircular grains is described. The setup consists of a coherent optical system to generate the Fourier irradiance of a random scene and a digital computer to process data. The sampling of Fourier spectra is achieved with a wedge ring detector. The inversion formula technique is used to estimate the particle distribution. A scene of three classes of varying sizes of Fe203, FeO rock grains is analyzed, and experimental results are given.
- Publication:
-
Optical Engineering
- Pub Date:
- June 1988
- DOI:
- 10.1117/12.7976704
- Bibcode:
- 1988OptEn..27..466G