Title :
FAST Rate Allocation Through Steepest Descent for JPEG2000 Video Transmission
Author :
Aulí-Llinàs, Francesc ; Bilgin, Ali ; Marcellin, Michael W.
Author_Institution :
Dept. of Inf. & Commun. Eng., Univ. Autonoma de Barcelona, Barcelona, Spain
fDate :
4/1/2011 12:00:00 AM
Abstract :
This work addresses the transmission of pre-encoded JPEG2000 video within a video-on-demand scenario. The primary requirement for the rate allocation algorithm deployed in the server is to match the real-time processing demands of the application. Scalability in terms of complexity must be provided to supply a valid solution by a given instant of time. The FAst rate allocation through STeepest descent (FAST) method introduced in this work selects an initial (and possibly poor) solution, and iteratively improves it until time is exhausted or the algorithm finishes execution. Experimental results suggest that FAST commonly achieves solutions close to the global optimum while employing very few computational resources.
Keywords :
gradient methods; image coding; rate distortion theory; video on demand; JPEG2000 video transmission; fast rate allocation; rate distortion theory; steepest descent; video-on-demand; Bit rate; Optimization; Rendering (computer graphics); Resource management; Servers; Streaming media; Transform coding; Motion JPEG2000; rate allocation; rate-distortion optimization; video transmission; Algorithms; Computer Communication Networks; Computer Graphics; Data Compression; Image Enhancement; Multimedia; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Video Recording;
Journal_Title :
Image Processing, IEEE Transactions on
DOI :
10.1109/TIP.2010.2077304