Title :
Context-Based Distributed Wavelet Video Coding
Author :
Grangetto, Marco ; Magli, Enrico ; Olmo, Gabriella
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino
fDate :
Oct. 30 2005-Nov. 2 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
Keywords :
parity check codes; video coding; wavelet transforms; LDPC syndrome encoding; context-based distributed video coding; frame correlation; wavelet coefficient; Context modeling; Decoding; Encoding; Motion compensation; Parity check codes; Scalability; Source coding; Video coding; Wavelet coefficients; Wavelet domain;
Conference_Titel :
Multimedia Signal Processing, 2005 IEEE 7th Workshop on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9288-4
Electronic_ISBN :
0-7803-9289-2
DOI :
10.1109/MMSP.2005.248682
