Archivio Istituzionale della RicercaIn this paper a novel scalable video coder, based on the principle of distributed source coding with side information is proposed. Coding scalability is achieved by means of bitplane coding in the wavelet domain. The distributed coding paradigm is applied to encode the wavelet coefficients of a given frame, by considering those of the previous frame as side information. LDPC syndrome encoding with proper context modeling of the frame correlation allowed us to significantly outperform intra coding obtained with JPEG 2000. Moreover, the proposed approach permits to perform motion compensation at the decoder side, thus opening a new perspective in the field of scalable video coding.
Context-based distributed wavelet video coding / Marco, Grangetto; Magli, Enrico; Olmo, Gabriella. - (2005). (Intervento presentato al convegno 2005 IEEE International Workshop on Multimedia Signal Processing (MMSP) tenutosi a Shangai (ROC) nel November 2005) [10.1109/MMSP.2005.248682].
Context-based distributed wavelet video coding
MAGLI, ENRICO;OLMO, Gabriella
2005
Abstract
In this paper a novel scalable video coder, based on the principle of distributed source coding with side information is proposed. Coding scalability is achieved by means of bitplane coding in the wavelet domain. The distributed coding paradigm is applied to encode the wavelet coefficients of a given frame, by considering those of the previous frame as side information. LDPC syndrome encoding with proper context modeling of the frame correlation allowed us to significantly outperform intra coding obtained with JPEG 2000. Moreover, the proposed approach permits to perform motion compensation at the decoder side, thus opening a new perspective in the field of scalable video coding.
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https://hdl.handle.net/11583/1413235
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