Title :
Retransmission strategies for optimized JPEG 2000 image transmission in wireless environment
Author :
Grangetto, Marco ; Magli, Enrico ; Olmo, Gabriella
Author_Institution :
Dept. of Electron., Politec. di Torino, Turin, Italy
Abstract :
Transmission of images and video over lossy packet networks is known to pose severe technical challenges; FEC and ARQ are often used to make the transmission more robust towards potential data losses. In this paper we investigate ARQ strategies aimed at optimizing the transmission of progressive codestreams over wireless environments characterized by packet losses. The analysis is specifically tailored to the JPEG 2000 family of standards, and considers Part 1 and 3 for image and video compression, and Part 11 for additional error protection tools. We show that ad-hoc retransmission strategies significantly outperform basic ARQ schemes, providing improved end-to-end image and video quality.
Keywords :
automatic repeat request; video coding; wireless channels; ARQ; FEC; JPEG 2000; ad-hoc retransmission strategies; end-to-end image quality; error protection; image compression; images transmission; lossy packet networks; packet losses; progressive codestreams; video compression; video quality; video transmission; wireless environments; Abstracts; Automatic repeat request; Propagation losses; Reconfigurable architectures; Robustness; Streaming media;
Conference_Titel :
Signal Processing Conference, 2004 12th European
Conference_Location :
Vienna
Print_ISBN :
978-320-0001-65-7
