Multiple Description Coding with Redundant Expansions and Application to Image Communications
نویسندگان
چکیده
منابع مشابه
Multiple Description Coding with Redundant Expansions and Application to Image Communications
Multiple description coding offers an elegant and competitive solution for data transmission over lossy packet-based networks, with a graceful degradation in quality as losses increase. In the same time, coding techniques based on redundant transforms give a very promising alternative for the generation of multiple descriptions, mainly due to redundancy inherently given by a transform, which of...
متن کاملMultiple Description Coding with Redundant Expansions and Application to Image Communication
Multiple description coding offers an elegant and competitive solution for data transmission over lossy packetbased networks, with a graceful degradation in quality as losses increase. On the other hand, coding techniques based on redundant transforms give a very promising alternative for the generation of multiple descriptions, mainly due to redundancy inherently given by a transform itself, t...
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This paper presents a method for multiple description coding, by clustering generic redundant dictionaries into blocks of N atoms. Since these blocks are likely to gather coherent atoms, the encoder can distribute atoms from the same coherent block to different descriptions, without important penalty on the side distortion. In the same time, atoms from the same blocks are sufficiently different...
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We consider the problem of coding images for transmission over error-prone channels. The impairments we target are transient channel shutdowns, as would occur in a packet network when a packet is lost, or in a wireless system during a deep fade: when data is delivered it is assumed to be error-free, but some of the data may never reach the receiver. The proposed algorithms are based on a combin...
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Multiple description (MD) coding has evolved as a promising technique for promoting error resiliency of multimedia system in real-time application programs over error-prone communicational channels. Although multiple description lattice vector quantization (MDCLVQ) is an efficient method for transmitting reliable data in the context of potential error channels, this method doesn’t consider disc...
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ژورنال
عنوان ژورنال: EURASIP Journal on Image and Video Processing
سال: 2007
ISSN: 1687-5281
DOI: 10.1186/1687-5281-2007-024863