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Studies in optical parallel processing. [all optical and electro-optic approaches
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lee, S. H. |
| Copyright Year | 1978 |
| Description | Threshold and A/D devices for converting a gray scale image into a binary one were investigated for all-optical and opto-electronic approaches to parallel processing. Integrated optical logic circuits (IOC) and optical parallel logic devices (OPA) were studied as an approach to processing optical binary signals. In the IOC logic scheme, a single row of an optical image is coupled into the IOC substrate at a time through an array of optical fibers. Parallel processing is carried out out, on each image element of these rows, in the IOC substrate and the resulting output exits via a second array of optical fibers. The OPAL system for parallel processing which uses a Fabry-Perot interferometer for image thresholding and analog-to-digital conversion, achieves a higher degree of parallel processing than is possible with IOC. |
| File Size | 6371632 |
| Page Count | 42 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790011684 |
| Archival Resource Key | ark:/13960/t3712vr22 |
| Language | English |
| Publisher Date | 1978-10-31 |
| Access Restriction | Open |
| Subject Keyword | Optics Optical Fibers Integrated Circuits Image Processing Logic Circuits Refractivity Binary Data Electro-optics Fabry-perot Interferometers Parallel Processing Computers Analog To Digital Converters Optical Data Processing Fiber Optics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
