Show simple item record

dc.contributor.authorAteş, Hasan Fehmien_US
dc.contributor.authorÇizmeci, Buraken_US
dc.date.accessioned2015-07-14T23:46:50Z
dc.date.available2015-07-14T23:46:50Z
dc.date.issued2011
dc.identifier.citationAteş, H. F. & Çizmeci, B. (2011). Decoder side true motion estimation for very low bitrate B-frame coding. Paper presented at the 2011 18th IEEE International Conference on Image Processing, 1673-1676. doi:10.1109/ICIP.2011.6115777en_US
dc.identifier.isbn9781457713033
dc.identifier.isbn9781457713026
dc.identifier.isbn9781457713040
dc.identifier.issn1522-4880
dc.identifier.issn2381-8549
dc.identifier.otherWOS:000298962501200
dc.identifier.urihttps://hdl.handle.net/11729/617
dc.identifier.urihttp://dx.doi.org/10.1109/ICIP.2011.6115777
dc.description.abstractIn H.264 standard, coding of motion vectors constitutes a significant portion of total bitrate especially at low bitrate regimes. This is because differential coding of motion vectors is inefficient when the bit budget is very low. In this paper, we propose a novel estimation and coding algorithm for motion vectors of B-frames at very low bitrates. In this method, the encoder selects the optimal motion vector from a limited set of candidate vectors that are determined at the decoder side using true motion estimation. Since these candidate vector sets are fixed by the decoder for each macroblock, there is no need for explicit coding of motion information, which reduces the bitrate required for coding. Also, true motion vector estimates are used for improved direct mode coding in B-frames. The algorithm provides an average of 0.68 dB PSNR gain for B-frames when compared to the reference H.264 results at the same bitrates. Simulation results also indicate significant improvement in visual quality of the compressed B-frames.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.isversionof10.1109/ICIP.2011.6115777
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectH.264 video codingen_US
dc.subjectFrame rate up-conversionen_US
dc.subjectTrue motion estimationen_US
dc.subjectBit rateen_US
dc.subjectDecodingen_US
dc.subjectEncodingen_US
dc.subjectImage codingen_US
dc.subjectPSNRen_US
dc.subjectReliabilityen_US
dc.subjectVectorsen_US
dc.subjectH.264 standarden_US
dc.subjectPSNR gainen_US
dc.subjectDecoder side true motion estimationen_US
dc.subjectDifferential motion vector codingen_US
dc.subjectMotion information codingen_US
dc.subjectVery low bitrate B-frame codingen_US
dc.subjectMotion estimationen_US
dc.subjectVideo codingen_US
dc.titleDecoder side true motion estimation for very low bitrate b-frame codingen_US
dc.typeconferenceObjecten_US
dc.description.versionPublisher's Versionen_US
dc.relation.journal2011 18th IEEE International Conference on Image Processingen_US
dc.contributor.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.contributor.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.contributor.authorID0000-0002-6842-1528
dc.identifier.startpage1673
dc.identifier.endpage1676
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.contributor.institutionauthorAteş, Hasan Fehmien_US
dc.contributor.institutionauthorÇizmeci, Buraken_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record