Proceedings includes 141 papers divided into several sections dealing with computer networks, surface acoustic wave devices, optical wave propagation, technology transfer, electromagnetic waves, drives, microcomputers...
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Proceedings includes 141 papers divided into several sections dealing with computer networks, surface acoustic wave devices, optical wave propagation, technology transfer, electromagnetic waves, drives, microcomputers and microprocessors, integrated circuits, solar energy and cells, semiconductor devices and materials, electromagnetic compatibility, wind energy, fault-tolerant computer systems, signal processing, education, photovoltaics, digital communications, medical engineering, control systems, microwave devices, sonar imaging, computerized tomography as well as circuits and instrumentation. Topics covered include: motors, generators, antennas, ceramic materials, radio techniques, electric filters, oscillators, telephony, resonators and various applications of automatic control and computers. Technical and professional papers from this conference are indexed with the conference code no. 00146 in the Ei Engineering Meetings (TM) database produced by Engineering information, Inc.
The proceedings contain 84 papers grouped into 13 sessions. The topics discussed are: nonlinear optics; cars and tunable IR generation; optical metrology; LIDAR; medical and biological applications; anemometry, scatte...
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The proceedings contain 84 papers grouped into 13 sessions. The topics discussed are: nonlinear optics; cars and tunable IR generation; optical metrology; LIDAR; medical and biological applications; anemometry, scattering and propagation; semiconductor lasers; focus on industry; UV and TEA lasers; fiberoptics; electro-optical devices; nonlinear optics and detection; and laser material processing. Technical and professional papers from this conference are indexed with the conference code no. 00165 in the Ei Engineering Meetings (TM) database produced by Engineering information, Inc.
TWENTY PAPERS WERE PRESENTED IN FOUR SESSIONS DEALING WITH THE MOUNT ST. HELENS ERUPTION, SATELLITE systems FOR REMOTE SENSING, GROUND processing OF REMOTE SENSOR DATA, AND MENSURATION AND INTERPRETATION EQUIPMENT. TE...
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TWENTY PAPERS WERE PRESENTED IN FOUR SESSIONS DEALING WITH THE MOUNT ST. HELENS ERUPTION, SATELLITE systems FOR REMOTE SENSING, GROUND processing OF REMOTE SENSOR DATA, AND MENSURATION AND INTERPRETATION EQUIPMENT. TECHNICAL AND PROFESSIONAL PAPERS FROM THIS conference ARE INDEXED WITH THE conference CODE NO. 00852 IN THE EI ENGINEERING MEETINGS (TM) DATABASE PRODUCED BY ENGINEERING information, INC.
Proceedings includes 141 papers divided into several sections dealing with computer networks, surface acoustic wave devices, optical wave propagation, technology transfer, electromagnetic waves, drives, microcomputers...
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Proceedings includes 141 papers divided into several sections dealing with computer networks, surface acoustic wave devices, optical wave propagation, technology transfer, electromagnetic waves, drives, microcomputers and microprocessors, integrated circuits, solar energy and cells, semiconductor devices and materials, electromagnetic compatibility, wind energy, fault-tolerant computer systems, signal processing, education, photovoltaics, digital communications, medical engineering, control systems, microwave devices, sonar imaging, computerized tomography as well as circuits and instrumentation. Topics covered include: motors, generators, antennas, ceramic materials, radio techniques, electric filters, oscillators, telephony, resonators and various applications of automatic control and computers. Technical and professional papers from this conference are indexed with the conference code no. 00146 in the Ei Engineering Meetings (TM) database produced by Engineering information, Inc.
The increasing complexity and variety of image sensors has been the source of interest in the development of data compression for images. Image data has become one of the most active topics of research in digital imag...
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The increasing complexity and variety of image sensors has been the source of interest in the development of data compression for images. Image data has become one of the most active topics of research in digital image processing as a result [1]. The continued evolution of digital circuitry has caused the focus of data compression research to lie in digital implementations. However, there is also a potential for optical computations in image data compression, as was demonstrated in the concepts of interpolated DPCM [2]. The method of DPCM data compression is one of the most thoroughly studied techniques. DPCM achieves data compression by separating the image information into two parts: the low-spatial frequencies and the high-spatial frequencies. Low-spatial frequencies are re-tained by exploiting their predictability; high-spatial frequencies are retained at fewer significant bits, and substantial data compression is achieved. Interpolated DPCM is a mechanism for separating an image into low- and high- spatial frequency components, with a similar amount of data compression being achieved. The computations to achieve the sep-aration can be implemented by simple incoherent optical devices [2].
Acousto-optical Bragg cell development work currently being performed has resulted in devices and subsystems which are directly applicable to a variety of wideband radio frequency (RF) receiver systems. Particular dev...
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Acousto-optical Bragg cell development work currently being performed has resulted in devices and subsystems which are directly applicable to a variety of wideband radio frequency (RF) receiver systems. Particular devices in which improvements have been made include Bragg cells, detector arrays and diode lasers. The system application areas included in this paper are wideband channelized receivers, and direction-finding (DF) systems. The wideband channelizers are further broken down into: (1) integrating or radiometer type receivers suitable for use in applications such as spread spectrum detection in high probability of intercept receivers (HPIR) and (2) receivers incorporating high speed readout devices suitable for extracting simultaneous frequency and time-of-arrival (TOA) information in an Electronic Support Measures (ESM) type receiver system.
Acousto-optical Bragg cell development work currently being performed has resulted in devices and subsystems which are directly applicable to a variety of wideband radio frequency (RF) receiver systems. Particular dev...
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Acousto-optical Bragg cell development work currently being performed has resulted in devices and subsystems which are directly applicable to a variety of wideband radio frequency (RF) receiver systems. Particular devices in which improvements have been made include Bragg cells, detector arrays and diode lasers. The system application areas included in this paper are wideband channelized receivers, and direction-finding (DF) systems. The wideband channelizers are further broken down into: (1) integrating or radiometer type receivers suitable for use in applications such as spread spectrum detection in high probability of intercept receivers (HPIR) and (2) receivers incorporating high speed readout devices suitable for extracting simultaneous frequency and time-of-arrival (TOA) information in an Electronic Support Measures (ESM) type receiver system.
The objective of maintaining security of social research data is an operationalization of the concept of "confidentiality" in social research. The problems in meeting the objective depend on where the resear...
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The objective of maintaining security of social research data is an operationalization of the concept of "confidentiality" in social research. The problems in meeting the objective depend on where the research falls on a hypothetical audit-research continuum for the data, on the kinds of process being used to elicit the data, and on the level of identifiability of records necessary in the research. Major differences between audit and social research approaches to security problems stem from the social researcher's infrequent need to maintain joint identifying and statistical records, and the opportunity to use modified (alias) identifiers and modified response data (i.e., inoculated with random error in a controlled process). Aside from benefiting from systematic appraisal methods such as those described by Peterson and Turn,12 social researchers might do well to capitalize on other research efforts connected with security in informationprocessing. Linkage systems and similar devices mentioned earlier depend very much on encryption schemes for assuring integrity of the system. The encryption transforms used in the examples cited have been limited to simple substitution of one character for another or simple linear transforms of original numerical characters. Perhaps certain kinds of transposition or additive transforms, as yet unfamiliar to the social scientist, can be adapted to this kind of problem to assure greater security. Certainly, the development of algorithms which help in checking whether indirect disclosure is possible or likely would be well received by managers of the research data banks. Translating the structure of data sets into simple algebraic equations is a skill which is usually beyond the social scientists' own expertise. Judging from Fellegi's13 work and current activities by Turn,23 such algorithms are likely to require a great deal of techinal attention to efficiency, to heuristic alternatives to searching large sets of equations (data sets)
This book presents recent advances in three-dimensional (3D) imaging and display frameworks, encompassing three categories of 3D imaging and display technologies. The first category is nonphotorealistic 3D approaches ...
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ISBN:
(数字)9783031458446
ISBN:
(纸本)9783031458439;9783031458460
This book presents recent advances in three-dimensional (3D) imaging and display frameworks, encompassing three categories of 3D imaging and display technologies. The first category is nonphotorealistic 3D approaches based on conventional optical cameras to implement 3D stereoscopic observation of a scene. In the context of nonphotorealistic 3D imaging and reconstruction systems, the authors introduce general principles and also demonstrate camera calibration for 3D imaging, smart cameras, and full-link imaging methods using the optical modulation transfer function to improve imaging quality in conventional cameras. The second category is based on light-ray light field technology to achieve photorealistic 3D imaging and displays. In the context of light-ray light field systems, two approaches capable of light-ray light field 3D imaging by utilizing a camera array or a lens array are demonstrated. Accordingly, light-ray light field display approaches comprising head-mounted displays and integral displays are also introduced. The third category is also photorealistic 3D imaging and display technology, which is based on holography (i.e., diffraction or wavefront light field). In the corresponding holographic displays, the authors introduce 3D holographic displays from three elements: algorithms, devices, and systems, involving fast hologram generation algorithms, wide-viewing-angle display systems, and metasurface holography, etc. Including an investigative roadmap for future progress in optical imaging and 3D display systems, this book is essential reading for scientists and engineers in academia and industry who are interested in next-generation imaging and display concepts for 3D visual sensing systems.
A character recognition system is described which incorporates a lens-and-retina input and a relatively simple computer. The system operates effectively with the image focused anywhere on the retina and may operate so...
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