Title :
A layered video coding scheme with its optimum bit allocation
Author :
Atta, Randa ; Ghanbari, M.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
Abstract :
We introduce the DCT pyramid as a layered video coding technique. For efficiency of coding, we propose an optimum bit allocation method for the layers of the DCT pyramid. The proposed method is based on minimization of the overall reconstructed error with the Lagrangian multiplier and distribution of the bit budget among the layers. Experimental results on the improvement due to optimum bit allocation are also presented.
Keywords :
discrete cosine transforms; image reconstruction; minimisation; source coding; transform coding; video coding; DCT pyramid; Lagrangian multiplier; bit allocation; bit budget; layered video coding; minimization; optimum bit allocation; source coding; Bit rate; Discrete cosine transforms; Lagrangian functions; MPEG 4 Standard; Minimization methods; Scalability; Spatial resolution; Systems engineering and theory; Video codecs; Video coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199111
