Title :
A novel resynchronization marker positioning approach for robust video transmission
Author :
Fang, Tao ; Chau, Lap-Pui
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
The challenge of robust video transmission is to protect the compressed data against hostile channel conditions while bringing little impact on bandwidth efficiency. Among the state-of-art error-resilient techniques, resynchronization has been proved to be a very effective tool. In this paper, using segmentation results, we propose a framework for the positioning of resynchronization markers such that the image quality of foreground can be improved at the expense of sacrificing the unimportant background. Experimental results demonstrate that this scheme significantly improves the subjective quality of video sequence for robust video transmission.
Keywords :
data compression; errors; image segmentation; image sequences; synchronisation; video coding; bandwidth efficiency; compressed data; hostile channel conditions; image quality; resynchronization marker positioning; robust video transmission; segmentation results; state-of-art error-resilient techniques; video sequence; Automatic repeat request; Data engineering; Decoding; Image coding; Image quality; Image segmentation; Robustness; Video compression; Video sequences; Videoconference;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328868