Title :
A modified video codec for heterogeneity multicast
Author :
Jun, Lu ; Ruan, Qiuqi
Author_Institution :
Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China
Abstract :
The paper presents a modified video codec for heterogeneity multicast. The modified codec first tries to improve the performance of a baseline algorithm by proposing a new construction of a matching pursuit over-complete basis set. Considering the factor of multicast video in a heterogeneous network, the codec adds a new control factor to the original iterative convergence course, which shows the video coding change with the requirement of the heterogeneous environment. The results, compared with H.263 at 10 kbit/s and 24 kbit/s, show that the modified method is an efficient and effective coding solution to very low bit rate video coding and heterogeneous multicast video.
Keywords :
convergence of numerical methods; iterative methods; multicast communication; video codecs; video coding; 10 kbit/s; 24 kbit/s; H.263; heterogeneity multicast; heterogeneous network; iterative convergence course; matching pursuit overcomplete basis set; multicast video; video codec; video coding; Bit rate; Codecs; IP networks; Image coding; Iterative algorithms; Matching pursuit algorithms; Multicast algorithms; Pursuit algorithms; Video coding; Video compression;
Conference_Titel :
Signal Processing, 2002 6th International Conference on
Print_ISBN :
0-7803-7488-6
DOI :
10.1109/ICOSP.2002.1181187
