Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13152
Title: Optimized protection of streaming media authenticity
Authors: ZHANG ZHISHOU
Keywords: Stream Authentication; Media Streaming; Rate-Distortion-Authentication Optimization; Butterfly Authentication; Generalized Butterfly Graph
Issue Date: 7-Mar-2008
Source: ZHANG ZHISHOU (2008-03-07). Optimized protection of streaming media authenticity. ScholarBank@NUS Repository.
Abstract: This thesis studies the problem of providing quality-optimized authentication for multimedia content delivered over public and lossy network, which has two aspects: authenticity and quality. The former is to assure that any unauthorized alteration should be detected by a receiver, while the latter is to optimize the quality of the authenticated media. Towards these goals, we first propose a Butterfly Authentication, a graph-based authentication method achieving high robustness against packet loss. We then extend it to Generalized Butterfly Graph (GBG) Authentication to allow a flexible balance between overhead and robustness. In addition, considering that media packets are of unequal importance, we propose a Content-aware Optimized media stream authentication method to compute the best authentication graph achieving optimized media quality. Finally, we propose a Rate-Distortion-Authentication (R-D-A) Optimized streaming method, to compute the packet transmission schedule achieving optimized media quality, based on both packet importance and the authentication dependency.
URI: http://scholarbank.nus.edu.sg/handle/10635/13152
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
PHD_THESIS_ZHANG_ZHISHOU.pdf2.92 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

184
checked on Jan 14, 2018

Download(s)

142
checked on Jan 14, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.