Title :
Hybrid error concealment in digital compressed video streams
Author :
Hadar, Ofer ; Hube, M. ; Huber, Merav
Author_Institution :
Dept. of Commun. Syst. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
fDate :
28 June-1 July 2004
Abstract :
Transmission of a compressed video signal over a lossy communication network exposes the information to losses and errors, which may cause serious and visible degradation to the decoded video stream. We present a new hybrid error concealment algorithm, relying on temporal and spatial concealment. This algorithm includes consideration of the spatial and temporal activity in the surrounding of a lost block, and introduces four thresholds, which lead to choosing the suitable concealment scheme for each block.
Keywords :
data compression; video coding; video streaming; MPEG-2; compressed video signal transmission; decision tree; decoded video stream degradation; digital compressed video streams; hybrid error concealment; lossy communication network; spatial concealment; temporal concealment; Application software; Buffer storage; Degradation; Image reconstruction; Intelligent networks; Propagation losses; Streaming media; Systems engineering and theory; Transform coding; Video compression;
Conference_Titel :
Information Technology: Research and Education, 2004. ITRE 2004. 2nd International Conference on
Print_ISBN :
0-7803-8625-6
DOI :
10.1109/ITRE.2004.1393643
