000052290 001__ 52290
000052290 005__ 20190316233443.0
000052290 02470 $$2ISI$$a000078906300013
000052290 037__ $$aREP_WORK
000052290 245__ $$aAdaptive MPEG-2 Information Structuring
000052290 269__ $$a1998
000052290 260__ $$c1998
000052290 336__ $$aReports
000052290 520__ $$aThis work addresses the optimization of TV-resolution MPEG-2 video streams to be transmitted over lossy packet networks. This paper introduces a new scene-complexity adaptive mechanism, namely the Adaptive MPEG-2 Information Structuring (AMIS) mechanism. AMIS adaptively modulates the number of resynchronization points (i.e the slice headers and intra-coded macroblocks) in order to maximize the perceived video quality assuming it is aware of the packet loss probability and the error concealment technique implemented in the decoder. The perceived video quality depends both on the encoding quality and the degradation due to data loss. Therefore, AMIS constantly determines the best compromise between the rate allocated to pure video information and the rate aiming at reducing the sensitivity to packet loss. Results show that the proposed algorithm behaves much better than the traditional MPEG-2 encoding scheme in terms of perceived video quality under the same traffic constraints.
000052290 700__ $$0241061$$g101475$$aFrossard, P.
000052290 700__ $$aVerscheure, O.
000052290 8564_ $$uhttps://infoscience.epfl.ch/record/52290/files/IC_TECH_REPORT_199831.pdf$$zn/a$$s277876
000052290 909C0 $$xU10851$$0252393$$pLTS4
000052290 909CO $$ooai:infoscience.tind.io:52290$$qGLOBAL_SET$$pSTI$$preport
000052290 937__ $$aEPFL-REPORT-52290
000052290 970__ $$a199831/IC
000052290 973__ $$sPUBLISHED$$aEPFL
000052290 980__ $$aREPORT