Generation of Orthogonal Projections from Sparse Camera Arrays

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dc.contributor.authorSilva, Ryan Edwarden
dc.contributor.committeechairEhrich, Roger W.en
dc.contributor.committeememberArthur, James D.en
dc.contributor.committeememberGracanin, Denisen
dc.contributor.committeememberQuek, Francis K. H.en
dc.contributor.departmentComputer Scienceen
dc.date.accessioned2014-03-14T20:37:30Zen
dc.date.adate2007-05-25en
dc.date.available2014-03-14T20:37:30Zen
dc.date.issued2007-05-17en
dc.date.rdate2007-05-25en
dc.date.sdate2007-05-18en
dc.description.abstractIn the emerging arena of face-to-face collaboration using large, wall-size screens, a good videoconferencing system would be useful for two locations which both have a large screen. But as screens get bigger, a single camera becomes less than adequate to drive a videoconferencing system for the entire screen. Even if a wide-angle camera is placed in the center of the screen, it's possible for people standing at the sides to be hidden. We can fix this problem by placing several cameras evenly distributed in a grid pattern (what we call a sparse camera array) and merging the photos into one image. With a single camera, people standing near the sides of the screen are viewing an image with a viewpoint at the middle of the screen. Any perspective projection used in this system will look distorted when standing at a different viewpoint. If an orthogonal projection is used, there will be no perspective distortion, and the image will look correct no matter where the viewer stands. As a first step in creating this videoconferencing system, we use stereo matching to find the real world coordinates of objects in the scene, from which an orthogonal projection can be generated.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05182007-124239en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05182007-124239/en
dc.identifier.urihttp://hdl.handle.net/10919/32957en
dc.publisherVirginia Techen
dc.relation.haspartthesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectimagingen
dc.subjectstereoen
dc.subjectarraysen
dc.subjectcameraen
dc.subjectorthogonalen
dc.subjectprojectionen
dc.titleGeneration of Orthogonal Projections from Sparse Camera Arraysen
dc.typeThesisen
thesis.degree.disciplineComputer Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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