Thesis (M.S.)--Boston University

A TV bandwidth compression scheme based on psychophysical approach had been studied with an optical real-time processor. This thesis reports the design and instrumentation of an electronic version of the optical processor. The electronic processor is very close to an actual TV system. The processor requires relatively simple circuits, and performance checks are described. Subjective evaluation of the output picture, showed an improvement in picture quality for low compression ratios, less than 2. Above this ratio, the compression introduces excessive distortions. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

A television band compression scheme which depends primarily on matching in one sense the eye's sensitivity to flicker has been proposed. For a static picture as the source material, it is found that the compression ratio is not directly limited by the flicker effect, but the picture quality assessed subjectively, falls quite fast as the compression ratio is increased. A compression ratio of 1.5:1 is accompanied by a very small drop in subjective quality. Using a "high frequency boost" circuit the compression ratio can be increased to 3:1 under conditions of satisfactory picture quality. Experiments were performed using as source a movie picture, and higher compression ratios than those for the static picture were indicated. All the experiments were performed using a simulated television transmission system. The system was based on a laser source, and it is an improvement on a system designed by Otto Meier in 1968. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

Thesis (M.S.)--Kutztown University of Pennsylvania, 1998. / Source: Masters Abstracts International, Volume: 45-06, page: 2808. Typescript. Abstract precedes thesis as preliminary leaves [1]-3. Includes bibliographical references (leaves 68-73).

Thesis (M.A.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references (p. 236-249).

Thesis (M.S.)--Boston University

Thesis (M.A.)--Ohio State University. / Bibliography: leaves 78-79. Available online via OhioLINK's ETD Center

Thesis (Ph. D.)--Ohio State University, 1982. / Includes bibliographical references (leaves 207-212). Available online via OhioLINK's ETD Center.

Thesis (M.A.)--University of Missouri-Columbia, 2008. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on September 22, 2008) Includes bibliographical references.