A multiresolution approach for the coding of edges of still images using adaptive arithmetic coding

Guillaume Jeannic (1) , Vincent Ricordel (1) , Dominique Barba (1)

1 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes

An edge coding scheme based on chain code representation in a multiresolution image coding context is presented. Our method enhances the coding schemes that describe the source structure with Markov models, by using also an a priori knowledge from the previous decoded resolution images. Experiments using adaptive arithmetic coding have shown up to a 5% improvement for the bitrate compared to a Markovian scheme.

Mots clés: chain coding; Markov processes; arithmetic coding; adaptive coding; multiresolution image; Freeman codes

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement des images [eess.IV]; Traitement du signal et de l'image [eess.SP]; Théorie de l'information [cs.IT]; Théorie de l'information et codage [math.IT]

Guillaume Jeannic, Vincent Ricordel, Dominique Barba. A multiresolution approach for the coding of edges of still images using adaptive arithmetic coding. PCS 2007, Nov 2007, Liboa, Portugal. ⟨hal-00251802⟩