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dc.contributor.authorChen, YLen_US
dc.contributor.authorLin, DWen_US
dc.date.accessioned2014-12-08T15:27:18Z-
dc.date.available2014-12-08T15:27:18Z-
dc.date.issued1998en_US
dc.identifier.isbn0-7803-4455-3en_US
dc.identifier.urihttp://hdl.handle.net/11536/19542-
dc.description.abstractWe consider ways to combat the error effects when transmitting H.263 video over a wireless channel. The error control measures consist of two "layers," namely, that of the coded bitstream and of the video information. At the bitstream layer, we employ error-resilient entropy coding (EREC), with pseudo-random block interleaving, to reduce the error propagation in decoding of variable-length codewords. At the information layer, we employ a DC recovery scheme to conceal the effects of corrupted DC coefficients. Corrupted motion vectors are detected and corrected using a motion-vector pairing technique in the encoder and a corresponding motion-vector checking and recovery algorithm in the decoder. By these methods, corrupted strips in the images caused by loss of synchronization are avoided. The annoying "green/pink block artifacts" caused by erroneous DC coefficients and the effects of incorrect motion compensation caused by corrupted motion vectors are also reduced.en_US
dc.language.isoen_USen_US
dc.titleError control for H.263 video transmission over wireless channelsen_US
dc.typeProceedings Paperen_US
dc.identifier.journalISCAS '98 - PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-6en_US
dc.citation.spageC118en_US
dc.citation.epageC121en_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000075224600470-
Appears in Collections:Conferences Paper