Publication:
Rate distortion optimized slicing over bit error channels

dc.contributor.coauthorHarmancı, Öztan
dc.contributor.departmentDepartment of Electrical and Electronics Engineering
dc.contributor.kuauthorTekalp, Ahmet Murat
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.date.accessioned2024-11-09T13:21:34Z
dc.date.issued2005
dc.description.abstractIn this paper, we study the problem of optimizing slice sizes and locations for video transmission over bit error channels. We propose a method that utilizes estimation of slice rate and distortion which is a function of the inter-macroblock dependency as exploited in the video codec. First we experimentally show that our estimation is effective. Since there are practically numerous possibilities for slice configurations and one must actually check all possibilities for a complete search, we assume segmentation of macroblocks so that a slice can only start at the segments. Although this results in a slightly suboptimal solution, it reduces the number of possibilities. However there are still practically too many configurations. Then we use the proposed RD estimation method and combine it with a dynamic programming approach to effectively determine the most optimal slice configuration. RD optimization is carried out in terms of minimizing the expected Lagrangian using the expected distortion of a slice. We assume that the physical layer is capable of generating an error report showing which transmission units are received in error. This allows us to use NEWPRED with macroblock level feedback and prevent wrongful decoding of erroneous macroblocks. We compare the proposed system with the two common approaches namely, fixed number of MBs per slice and fixed number of bits per slice and see that the proposed method performs better than both. © 2005 SPIE and IS&T.
dc.description.fulltextYES
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipN/A
dc.description.versionPublisher version
dc.identifier.doi10.1117/12.587445
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR01016
dc.identifier.issn0277-786X
dc.identifier.quartileN/A
dc.identifier.scopus2-s2.0-21844459790
dc.identifier.urihttps://hdl.handle.net/20.500.14288/3277
dc.identifier.wos261035400014
dc.keywordsBit error channel
dc.keywordsRate distortion
dc.keywordsRD optimization
dc.keywordsVideo transmission
dc.keywordsBit error rate
dc.keywordsChannel capacity
dc.keywordsImage compression
dc.keywordsImage segmentation
dc.keywordsOptimization
dc.keywordsVideo signal processing
dc.keywordsImage communication systems
dc.language.isoeng
dc.publisherSociety of Photo-optical Instrumentation Engineers (SPIE)
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/1028
dc.subjectElectrical and electronic engineering
dc.titleRate distortion optimized slicing over bit error channels
dc.typeConference Proceeding
dspace.entity.typePublication
local.contributor.kuauthorTekalp, Ahmet Murat
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Electrical and Electronics Engineering
relation.isOrgUnitOfPublication21598063-a7c5-420d-91ba-0cc9b2db0ea0
relation.isOrgUnitOfPublication.latestForDiscovery21598063-a7c5-420d-91ba-0cc9b2db0ea0
relation.isParentOrgUnitOfPublication8e756b23-2d4a-4ce8-b1b3-62c794a8c164
relation.isParentOrgUnitOfPublication.latestForDiscovery8e756b23-2d4a-4ce8-b1b3-62c794a8c164

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
1028.pdf
Size:
154.9 KB
Format:
Adobe Portable Document Format