| Titre : | Morphological dilation image coding with context weights prediction (2012) |
| Auteurs : | Jiaji Wu, Auteur ; Anand Paul, Auteur ; Yan Xing, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Signal processing. Image communication (Vol. 25 N° 10, Novembre 2010) |
| Article en page(s) : | pp. 717–728 |
| Note générale : | Electronique |
| Langues : | Anglais |
| Tags : | Quad-tree coding Morphological dilation Variable-length group test Weights training |
| Résumé : | This paper proposes an adaptive morphological dilation image coding with context weights prediction. The new dilation method is not to use fixed models, but to decide whether a coefficient needs to be dilated or not according to the coefficient’s predicted significance degree. It includes two key dilation technologies: (1) controlling dilation process with context weights to reduce the output of insignificant coefficients and (2) using variable-length group test coding with context weights to adjust the coding order and cost as few bits as possible to present the events with large probability. Moreover, we also propose a novel context weight strategy to predict a coefficient’s significance degree more accurately, which can be used for two dilation technologies. Experimental results show that our proposed method outperforms the state of the art image coding algorithms available today. |
| ISSN : | 0923-5965 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0923596510001104 |
