Selective FEC for error-resilient image coding and transmission using similarity check functions

This paper introduces the concept of similarity check functions that measure the degree of corruption in transmitted multimedia data packets. Rather than directly discarding or directly retransmitting erroneous packets, the degree of corruption contributed by a particular packet is measured by a sim...

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Vydáno v:2004 International Conference on Image Processing Ročník 5; s. 3217 - 3220 Vol. 5
Hlavní autoři: Lam, T.-T., Karam, L.J., Bazzi, R.A., Abousleman, G.P.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: Piscataway NJ IEEE 2004
Témata:
Applied sciences
Artificial intelligence
Computer errors
Computer science
Computer science; control theory; systems
Computer systems and distributed systems. User interface
Cyclic redundancy check
Error correction codes
Exact sciences and technology
Forward error correction
Image coding
Multimedia systems
Particle measurements
Pattern recognition. Digital image processing. Computational geometry
Protection
PSNR
Software
Multimedia
Image coding
Similarity
Image processing
Coding errors
Routing
Error correcting code
Metric
Case based reasoning
Image transmission
ISBN:0780385543, 9780780385542
ISSN:1522-4880
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Popis
Shrnutí:This paper introduces the concept of similarity check functions that measure the degree of corruption in transmitted multimedia data packets. Rather than directly discarding or directly retransmitting erroneous packets, the degree of corruption contributed by a particular packet is measured by a similarity check function at the receiver, which does not require explicit knowledge of the source data. Accordingly, if the packet is found to be badly corrupted based on a specified similarity criteria, it can be considered as a lost packet and recovered using forward error correcting codes or retransmission. An example of a similarity check function design and a selective forward error correction (S-FEC) scheme that allocates channel protection bits only to those packets that are in most need of correction, is presented to illustrate the proposed concept.
ISBN:0780385543
9780780385542
ISSN:1522-4880
DOI:10.1109/ICIP.2004.1421798