NDLI: Rate efficient remote video file synchronization

Content Provider	IEEE Xplore Digital Library
Author	Hao Zhang Chuohao Yeo Ramchandran, K.
Copyright Year	2009
Description	Author affiliation: Department of EECS, University of California, Berkeley, 94720, USA (Hao Zhang; Chuohao Yeo; Ramchandran, K.)
Abstract	Video file synchronization between remote users is an important task in many applications. Re-transmission of a video that has been only slightly modified is expensive, wasteful and avoidable. We propose a scheme that automatically detects and sends only modified content according to some user defined distortion constraint to enable rate savings under a wide range of video edits. Through the use of a low-rate hierarchical hashing scheme, we can detect modifications with some spatial granularity. We also apply distributed source coding techniques to exploit correlation between remote copies for a further rate rebate. Experimental results show that the proposed approach achieves up to 7× rate reduction when compared to re-transmitting.
Starting Page	1845
Ending Page	1848
File Size	234147
Page Count	4
File Format	PDF
ISBN	9781424423538
ISSN	15206149
DOI	10.1109/ICASSP.2009.4959966
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-19
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video compression Video sharing Video coding Protocols Parity check codes Source coding Costs Peer to peer computing YouTube Internet video coding VSYNC rsync video file synchronization video hash
Content Type	Text
Resource Type	Article

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