Issues in developing a very low bit rate videophone coder

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buir.advisorOnural, Levent
dc.contributor.authorMickos, Roy Mikael
dc.date.accessioned2016-01-08T20:11:08Z
dc.date.available2016-01-08T20:11:08Z
dc.date.issued1993
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionAnkara : Department of Electrical and Electronics Engineering and Institute of Engineering and Sciences, Bilkent University, 1993.en_US
dc.descriptionThesis (Master's) -- -Bilkent University, 1993.en_US
dc.descriptionIncludes bibliographical refences.en_US
dc.description.abstractThe issues of a suitable transmission image size, general behaviour, and buffer control of a very low bitrate videophone video signal coder to be used in future mobile and public switched telephone networks are addressed. A software simulator of the coder was built so that the performance of the coder and the various alternative methods under consideration could be tested by subjective evaluation. In the case of transmission image size a clear choice between the two alternatives, QCIF and NCIF. is achieved: QCIF. The behaviour of the coder is explained on the basis of some statistical parameters extracted from it. With head-and-shoulders sequences without buffer regulation the coder is succesfiil in allocating bits to those regions in the image containing the most important information. Finally, the buffer control scheme of the coder is analyzed and an alternative method, based on framewise analysis of the bits created for that frame, is developed which is shown to be better than the original.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityMickos, Roy Mikaelen_US
dc.format.extent73 leavesen_US
dc.identifier.urihttp://hdl.handle.net/11693/17535
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectVery Low Bitrate Video Codingen_US
dc.subjectVideophoneen_US
dc.subjectData Compressionen_US
dc.subjectVideo Codingen_US
dc.subject.lccTK5102 .M53 1993en_US
dc.subject.lcshData compression (telecommunication).en_US
dc.subject.lcshCoding theory.en_US
dc.titleIssues in developing a very low bit rate videophone coderen_US
dc.typeThesisen_US

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