Show simple item record

dc.contributor.advisorOnural, Levent
dc.contributor.authorBal, Can
dc.date.accessioned2016-01-08T18:11:39Z
dc.date.available2016-01-08T18:11:39Z
dc.date.issued2009
dc.identifier.urihttp://hdl.handle.net/11693/14971
dc.descriptionAnkara : The Department of Electrical and Electronics Engineering and the Institute of Engineering and Sciences of Bilkent University, 2009.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2009.en_US
dc.descriptionIncludes bibliographical references leaves 83-87.en_US
dc.description.abstractWith the evolution of the wireless communication technologies and the multimedia capabilities of the mobile phones, it is expected that three-dimensional (3D) video technologies will soon get adapted to the mobile phones. This raises the problem of choosing the best 3D video representation and the most efficient coding method for the selected representation for mobile platforms. Since the latest 2D video coding standard, H.264/MPEG-4 AVC, provides better coding efficiency over its predecessors, coding methods of the most common 3D video representations are based on this standard. Among the most common 3D video representations, there are multi-view video, video plus depth, multi-view video plus depth and layered depth video. For using on mobile platforms, we selected the conventional stereo video (CSV), which is a special case of multi-view video, since it is the simplest among the available representations. To determine the best coding method for CSV, we compared the simulcast coding, multi-view coding (MVC) and mixed-resolution stereoscopic coding (MRSC) without inter-view prediction, with subjective tests using simple coding schemes. From these tests, MVC is found to provide the best visual quality for the testbed we used, but MRSC without inter-view prediction still came out to be promising for some of the test sequences and especially for low bit rates. Then we adapted the Joint Video Team’s reference multi-view decoder to run on ZOOMTM OMAP34xTM Mobile Development Kit (MDK). The first decoding performance tests on the MDK resulted with around four stereo frames per second with frame resolutions of 640×352. To further improve the performance, the decoder software is profiled and the most demanding algorithms are ported to run on the embedded DSP core. Tests resulted with performance gains ranging from 25% to 60% on the DSP core. However, due to the design of the hardware platform and the structure of the reference decoder, the time spent for the communication link between the main processing unit and the DSP core is found to be high, leaving the performance gains insignificant. For this reason, it is concluded that the reference decoder should be restructured to use this communication link as infrequently as possible in order to achieve overall performance gains by using the DSP core.en_US
dc.description.statementofresponsibilityBal, Canen_US
dc.format.extentxv, 87 leaves, illustrationsen_US
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectthree-dimensional videoen_US
dc.subjectOMAPen_US
dc.subjectDSPen_US
dc.subjectMRSCen_US
dc.subjectmixed-resolution stereoscopic codingen_US
dc.subjectMVCen_US
dc.subjectmulti-view codingen_US
dc.subjectMPEG-4 AVCen_US
dc.subjectH.264en_US
dc.subjectvideo codingen_US
dc.subjectmobile platformen_US
dc.subject3D videoen_US
dc.subject.lccTK6680.5 .B35 2009en_US
dc.subject.lcshVideo compression.en_US
dc.subject.lcshCoding theory.en_US
dc.subject.lcshThree-dimensional display systems.en_US
dc.subject.lcshMobile communication systems.en_US
dc.subject.lcshDigital video.en_US
dc.subject.lcshMPEG (Video coding standard)en_US
dc.subject.lcshImage processing.en_US
dc.titleThree-dimensional video coding on mobile platformsen_US
dc.typeThesisen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.publisherBilkent Universityen_US
dc.description.degreeM.S.en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record