Global ETD Search

1	Snakes and Funerals: Aesthetics and American Widescreen Films Cossar, John Harper 02 May 2007 (has links) The study of widescreen cinema historically has been under analyzed with regard to aesthetics. This project examines the visual poetics of the wide frame from the silent films of Griffith and Gance to the CinemaScope grandeur of Preminger and Tashlin. Additionally, the roles of auteur and genre are explored as well as the new media possibilities such as letterboxing online content. If cinema’s history can be compared to painting, then prior to 1953, cinema existed as a portrait-only operation with a premium placed on vertical compositions. This is not to say that landscape shots were not possible or that lateral mise-en-scene did not exist. Cinematic texts, with very few exceptions, were composed in only one shape: the almost square Academy Ratio. Before 1953, cinema’s shape is that of portraiture; after 1953 cinema’s shape is landscape. Widescreen filmmaking is not simply an alternative to previous visual representation in cinema because no equivalent exists. Widescreen is quite simply a break from previous stylistic norms because the shape of the frame itself has been drastically reconfigured. With the proliferation of HDTV and widescreen computer monitors, certain aspect ratios that were once regarded as specifically “cinematic” are now commonplace both in the home and in the workplace. This project outlines a project that traces the innovations and aesthetic developments of widescreen aspect ratios from the silent era of D.W Griffith, Buster Keaton and Abel Gance all the way through to current widescreen digital manifestations of web-based media and digital “blanks” such as those created by Pixar. Other chapters include close textual analyses of “experimental” widescreen films of 1930, the development of “norms” for widescreen filmmaking in the early CinemaScope era of the 1950s and examinations of the experimental multi-screen mosaics of 1968 and beyond. Widescreen HDTV Letterbox CinemaScope Auteur Genre Preminger Tashlin Ray Sirk Fleischer Griffith Gance Keaton Aesthetics Aspect ratio Communication
2	Implementation and evaluation of content-aware video retargeting techniques / Implementation och utvärdering av innehållsstyrd omformatering av videosekvenser Holmer, Stefan January 2008 (has links) <p>The purpose of this master thesis was to study different content-aware video retargeting techniques, concentrating on a generalization of seam carving for video. Focus have also been put on the possibility to combine different techniques to achieve better retargeting of both multi-shot video and single-shot video. This also involved significant studies of automatic cut detection and different measures of video content. The work resulted in a prototype application for semi-automatic video retargeting, developed in Matlab. Three different retargeting techniques, seam carving, automated pan & scan and subsampling using bi-cubic interpolation, have been implemented in the prototype. The techniques have been evaluated and compared to each other from a content preservation perspective and a perceived quality perspective.</p> / <p>Syftet med examensarbetet har varit att studera tekniker för ändring av bredd/höjd-förhållandet i videosekvenser, där hänsyn tas till innehållet i bilderna. Fokus har lagts på en generalisering av "seam carving" för video och möjligheterna att kombinera olika tekniker för att nå bättre kvalitet både för videosekvenser som består av endast ett, eller flera, klipp. Detta innefattade således också omfattande studier av automatisk klippdetektering och olika mått av videoinnehåll. Arbetet har resulterat i en prototypapplikation utvecklad i Matlab för halvautomatisk förändring av bildförhållande där hänsyn tas till innehållet i sekvenserna. I prototypen finns tre metoder implementerade, "seam carving", automatiserad "pan & scan" och nedsampling med bi-kubisk interpolering. Dessa metoder har utvärderats och jämförts med varandra från ett innehållsbevarande perspektiv och ett kvalitetsperspektiv.</p> seam carving retargeting aspect ratio scaling saliency cut shot detection widescreen fullscreen processing optical flow sampling pan scan energy Image analysis Bildanalys Electrical engineering Elektroteknik Computer engineering Datorteknik Signal processing Signalbehandling TECHNOLOGY TEKNIKVETENSKAP
3	Implementation and evaluation of content-aware video retargeting techniques / Implementation och utvärdering av innehållsstyrd omformatering av videosekvenser Holmer, Stefan January 2008 (has links) The purpose of this master thesis was to study different content-aware video retargeting techniques, concentrating on a generalization of seam carving for video. Focus have also been put on the possibility to combine different techniques to achieve better retargeting of both multi-shot video and single-shot video. This also involved significant studies of automatic cut detection and different measures of video content. The work resulted in a prototype application for semi-automatic video retargeting, developed in Matlab. Three different retargeting techniques, seam carving, automated pan & scan and subsampling using bi-cubic interpolation, have been implemented in the prototype. The techniques have been evaluated and compared to each other from a content preservation perspective and a perceived quality perspective. / Syftet med examensarbetet har varit att studera tekniker för ändring av bredd/höjd-förhållandet i videosekvenser, där hänsyn tas till innehållet i bilderna. Fokus har lagts på en generalisering av "seam carving" för video och möjligheterna att kombinera olika tekniker för att nå bättre kvalitet både för videosekvenser som består av endast ett, eller flera, klipp. Detta innefattade således också omfattande studier av automatisk klippdetektering och olika mått av videoinnehåll. Arbetet har resulterat i en prototypapplikation utvecklad i Matlab för halvautomatisk förändring av bildförhållande där hänsyn tas till innehållet i sekvenserna. I prototypen finns tre metoder implementerade, "seam carving", automatiserad "pan & scan" och nedsampling med bi-kubisk interpolering. Dessa metoder har utvärderats och jämförts med varandra från ett innehållsbevarande perspektiv och ett kvalitetsperspektiv. seam carving retargeting aspect ratio scaling saliency cut shot detection widescreen fullscreen processing optical flow sampling pan scan energy Annan elektroteknik och elektronik Computer Engineering Datorteknik Signal Processing Signalbehandling Engineering and Technology Teknik och teknologier

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