File:A CMOS VLSI IC for real-time opto-electronic two-dimensional histogram generation (IA acmosvlsiicforre1094539739).pdf
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A CMOS VLSI IC for real-time opto-electronic two-dimensional histogram generation ( ) | ||
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Author |
Richstein, James K. |
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Title |
A CMOS VLSI IC for real-time opto-electronic two-dimensional histogram generation |
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Publisher |
Monterey, California. Naval Postgraduate School |
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Description |
Histogram generation, a standard image processing operation, is a record of the intensity distribution in the image. Histogram generation has straight forward implementations on digital computers using high level languages. A prototype of an optical-electronic histogram generator has been designed and tested for 1-D objects using wirewrapped MSI TTL components. The system has shown to be fairly modular in design. The aspects of the extension to two dimensions and the VLSI implementation of this design are discussed. In this paper, we report a VLSI design to be used in a two-dimensional real-time histogram generation scheme. The overall system design is such that the electronic signal obtained from the optically scanned two-dimensional semi- opaque image is processed and displayed within a period of one cycle of the scanning process. Specifically, in the VLSI implementation of the two- dimensional histogram generator, modifications were made to the original design. For the two-dimensional application, the output controller was analyzed as a finite state machine. The process used to describe the required timing signals and translate them to a VLSI finite state machine using Computer Aided Design Tools is discussed. In addition, the circuitry for sampling, binning, and display have been combined with the timing circuitry on one IC. In the original design, the pulse width of the electronically sampled photodetector is limited with an analog one-shot. The high sampling rates associated with the extension to two dimensions requires significant reduction in the original 1-D prototype's sample pulse width of approximately 75 ns. Subjects: VLSI (very large scsale integration) design; MAGIC; CMOS; Optics; Image processing |
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Language | English | |
Publication date |
December 1993 publication_date QS:P577,+1993-12-00T00:00:00Z/10 |
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Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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Accession number |
acmosvlsiicforre1094539739 |
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Source | ||
Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted. |
Licensing edit
Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 20:59, 13 July 2020 | 1,275 × 1,650, 94 pages (3.17 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection acmosvlsiicforre1094539739 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #5143) |
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Short title | A CMOS VLSI IC for real-time opto-electronic two-dimensional histogram generation |
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Author | Richstein, James K. |
File change date and time | 01:13, 28 January 2014 |
Date and time of digitizing | 01:13, 28 January 2014 |
Date metadata was last modified | 01:13, 28 January 2014 |
Software used | Richstein, James K. |
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Encrypted | no |
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Version of PDF format | 1.4 |