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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Adaptive TV ghost suppressor.

January 1975 (has links)
Thesis (M.Phil.)--Chinese University of Hong Kong. / Bibliography: leaf R1.
2

M-Net decoder production : a technical analysis

Green, David Robert January 1989 (has links)
Thesis (Masters Diploma (Technology))--Cape Technikon, Cape Town, 1989 / The document initially describes the operation of the decoder and the production system. Thereafter actual engineering problems are stated and their solutions discussed. The project involves the accurate identification of problem areas on the production line and the systematic solving for each case. Subjects include static electricity pretesting and automatic insertion machine defects. Analysis of these problems provides one with a better perspective towards the production line and its inherent problems. Results and solutions are presented photographically as well as tabulated in the annexure. In some cases, such as defect classification, deductions were concluded that were very different from those initially expected.
3

A production system for 12 GHz satellite broadcast receivers for developing countries

Collier, Michael. January 1976 (has links)
published_or_final_version / Electrical Engineering / Doctoral / Doctor of Philosophy
4

Managing the quality of colour television receivers in the Republic of South Africa

Higgins, John Morwood 06 1900 (has links)
This study investigates whether quality management has developed to such an extent that retailers, service repair organisations and consumers are satisfied with product and repair service quality provided by South African manufacturing companies. To investigate these aspects, the colour television industry has been selected because it contains various manufacturing companies of varying sizes and characters, employing different quality policies and performances. It offers relatively standardised products and services, which facilitates intercompany comparisons and employs a simple flow type assembly line process that is representative of other mass production industries. The hypotheses are tested by interviewing four selected populations by means of carefully constructed questionnaires, namely a retail population, a repair service population, a consumer population and a manufacturing population. The empirical results are statistically evaluated in terms of the various manufacturers ability to provide satisfactory product and repair service quality. Consumers and repair service organisations are selected because they represent a broad spectrum of the population with varying, but important opinions on product and repair service quality. Retailers selling colour television receivers are also selected as they play an important role in the management of quality and vary from small independent retailers to large chain stores and discounters. The results obtained from this study show that: • there is a need from the retailers, service repair organisations and consumers for the South African manufacturers to improve the quality of colour television receivers • there is a need by the consumers and the retailers for the manufacturers to improve their repair service quality • there is a need to improve the quality control procedures employed by the colour television manufacturers. / Business Management / D. Com. (Business Management)
5

The RMS phase error of a phase-locked loop FM demodulator for standard NTSC video

Dubbert, Dale F January 2010 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries / Department: Electrical and Computer Engineering.
6

Single and multi-frame video quality enhancement

Arici, Tarik. January 2009 (has links)
Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Yucel Altunbasak; Committee Member: Brani Vidakovic; Committee Member: Ghassan AlRegib; Committee Member: James Hamblen; Committee Member: Russ Mersereau. Part of the SMARTech Electronic Thesis and Dissertation Collection.
7

Managing the quality of colour television receivers in the Republic of South Africa

Higgins, John Morwood 06 1900 (has links)
This study investigates whether quality management has developed to such an extent that retailers, service repair organisations and consumers are satisfied with product and repair service quality provided by South African manufacturing companies. To investigate these aspects, the colour television industry has been selected because it contains various manufacturing companies of varying sizes and characters, employing different quality policies and performances. It offers relatively standardised products and services, which facilitates intercompany comparisons and employs a simple flow type assembly line process that is representative of other mass production industries. The hypotheses are tested by interviewing four selected populations by means of carefully constructed questionnaires, namely a retail population, a repair service population, a consumer population and a manufacturing population. The empirical results are statistically evaluated in terms of the various manufacturers ability to provide satisfactory product and repair service quality. Consumers and repair service organisations are selected because they represent a broad spectrum of the population with varying, but important opinions on product and repair service quality. Retailers selling colour television receivers are also selected as they play an important role in the management of quality and vary from small independent retailers to large chain stores and discounters. The results obtained from this study show that: • there is a need from the retailers, service repair organisations and consumers for the South African manufacturers to improve the quality of colour television receivers • there is a need by the consumers and the retailers for the manufacturers to improve their repair service quality • there is a need to improve the quality control procedures employed by the colour television manufacturers. / Business Management / D. Com. (Business Management)
8

From turnstile to transmitter : John Vassos, industrial designer, 1927-1941

Schwartz, Danielle January 2005 (has links)
No description available.
9

From turnstile to transmitter : John Vassos, industrial designer, 1927-1941

Schwartz, Danielle January 2005 (has links)
This study examines the birth of television and the modern media corporation that launched it, through the archives of the designer of the "first" set, John Vassos, a Greek-born American industrial designer, interior decorator, and illustrator (1898-1985). Vassos's early career is used as a case study to analyze the historical and cultural forces that shaped the emergence of this new media and the new profession of industrial design, through archival materials housed in the Archives of American Art at the Smithsonian Institution in Washington D.C. and at Syracuse University. Specifically, this thesis unites various parts of Vassos's early career, from his modernist illustrations to industrial design, through the aesthetics and practices of modernism. As RCA's lead industrial designer for over 40 years, Vassos was involved in the design and promotion of RCA's electronic products, including radios and televisions and studio equipment. Vassos also designed the new spaces carved out for their use in the home including the "living room of the future" featured at the 1939 World's Fair. Drawing from his skills as an illustrator, designer and display expert, Vassos helped develop RCA's public image at a time of its greatest expansion in radio and television manufacturing and broadcasting. This reading of Vassos's work is both diachronic, taking into account his work over the early part of his career to analyze his specific contribution and synchronic, in relationship to other designers working contemporaneously. Thus, this thesis explores Vassos's double role as a participant, with active agency within the emergence of the new field and as a subject, constrained by social roles and forces. Ranging from turnstile to the transmitter, Vassos along with other industrial designers used the streamlined aesthetic to create visual unity among mechanical and electronic products, from home to office, from subway to skyline.
10

Single and multi-frame video quality enhancement

Arici, Tarik 04 May 2009 (has links)
With the advance of the LCD technology, video quality is becoming increasingly important. In this thesis, we develop hardware-friendly low-complexity enhancement algorithms. Video quality enhancement methods can be classified into two main categories. Single frame methods are the first category. These methods have generally low computational complexity. Multi-frame methods combine information from more than one frame and require the motion information of objects in the scene to do so. We first concentrate on the contrast-enhancement problem by using both global (frame-wise) and local information derived from the image. We use the image histogram and present a regularization-based histogram modification method to avoid problems that are often created by histogram equalization. Next, we design a compression artifact reduction algorithm that reduces ringing artifacts, which is disturbing especially on large displays. Furthermore, to remove the blurriness in the original video we present a non-iterative diffusion-based sharpening algorithm, which enhances edges in a ringing-aware fashion. The diffusion-based technique works on gradient approximations in a neighborhood individually. This gives more freedom compared to modulating the high-pass filter output that is used to sharpen the edges. Motion estimation enables applications such as motion-compensated noise reduction, frame-rate conversion, de-interlacing, compression, and super-resolution. Motion estimation is an ill-posed problem and therefore requires the use of prior knowledge on motion of objects. Objects have inertia and are usually larger then pixels or a block of pixels in size, which creates spatio-temporal correlation. We design a method that uses temporal redundancy to improve motion-vector search by choosing bias vectors from the previous frame and adaptively penalizes deviations from the bias vectors. This increases the robustness of the motion-vector search. The spatial correlation is more reliable because temporal correlation is difficult to use when the objects move fast or accelerate in time, or have small sizes. Spatial smoothness is not valid across motion boundaries. We investigate using energy minimization for motion estimation and incorporate the spatial smoothness prior into the energy. By formulating the energy minimization iterations for each motion vector as the primal problem, we show that the dual problem is motion segmentation for that specific motion vector.

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