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OVERLAPPED QUASI-ARITHMETIC CODES FOR DISTRIBUTED VIDEO CODING Xavi Artigas1
 

Summary: OVERLAPPED QUASI-ARITHMETIC CODES FOR DISTRIBUTED VIDEO CODING
Xavi Artigas1
, Simon Malinowski2
, Christine Guillemot3
, Luis Torres1
1
Technical University of Catalonia, {xavi, luis}@gps.tsc.upc.edu
2
IRISA/University of Rennes, smalinow@irisa.fr
3
IRISA/INRIA, cguillem@irisa.fr
ABSTRACT
This paper describes Slepian-Wolf codes based on overlapped
quasi-arithmetic codes, where overlapping allows lossy
compression of the source below its entropy. In the context of
separate decoding, these codes are not uniquely decodable: the
overlap introduces ambiguity in the decoding process leading to
decoding errors. The presence of correlated side information at
the decoder is used to remove this ambiguity and achieve a
vanishing error probability. The state models and the automata

  

Source: Artigas, Xavier - Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya

 

Collections: Engineering; Computer Technologies and Information Sciences