A Hybrid Frame Concealment Algorithm for H.264/AVC

In packet-based video transmissions, packets loss due to channel errors may result in the loss of the whole video frame. Recently, many error concealment algorithms have been proposed in order to combat channel errors; however, most of the existing algorithms can only deal with the loss of macrobloc...

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Vydáno v:	IEEE transactions on image processing Ročník 19; číslo 1; s. 98 - 107
Hlavní autoři:	Bo Yan, Gharavi, H.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.01.2010 Institute of Electrical and Electronics Engineers
Témata:	Applied sciences Automatic voltage control Bit rate Decoding Error concealment error-resilient video transmission Exact sciences and technology H.264/AVC Image coding Image processing Information, signal and communications theory Interpolation ISO standards Miscellaneous Propagation losses Quality of service Signal processing Telecommunications and information theory Video compression Wireless networks Video coding Performance evaluation Packet switching Motion estimation Error concealment error-resilient video transmission Video signal Data transmission H.264/AVC Algorithm Video signal processing Simulation Signal processing Error detection Signal transmission Error correction Transmission loss
ISSN:	1057-7149, 1941-0042, 1941-0042
On-line přístup:	Získat plný text
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Popis
Shrnutí:	In packet-based video transmissions, packets loss due to channel errors may result in the loss of the whole video frame. Recently, many error concealment algorithms have been proposed in order to combat channel errors; however, most of the existing algorithms can only deal with the loss of macroblocks and are not able to conceal the whole missing frame. In order to resolve this problem, in this paper, we have proposed a new hybrid motion vector extrapolation (HMVE) algorithm to recover the whole missing frame, and it is able to provide more accurate estimation for the motion vectors of the missing frame than other conventional methods. Simulation results show that it is highly effective and significantly outperforms other existing frame recovery methods.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1057-7149 1941-0042 1941-0042
DOI:	10.1109/TIP.2009.2032311