Title :
The CBERC: a content-based error-resilient coding technique for packet video communications
Author :
Chen, Wu-Hsiang Jonas ; Hwang, Jenq-Neng
Author_Institution :
Broadcom Corp., Irvine, CA, USA
fDate :
8/1/2001 12:00:00 AM
Abstract :
This paper investigates robust transmission of a coded video sequence over unreliable packet networks. A content-based error-resilient coding (CBERC) algorithm is proposed to prevent severe error propagation. Specifically, the CBERC encoder performs motion-compensated prediction by taking the video content into consideration. A criterion based on the worst-case scenario is also provided to determine appropriate CBERC threshold. The CBERC algorithm does not require a feedback channel and supports both point-to-point and multi-point communications. It is of low complexity and is compatible with all the widely accepted video coding standards such as H.263+, H.261, MPEG-1, MPEG-2 and MPEG-4
Keywords :
data compression; motion compensation; packet switching; prediction theory; telecommunication networks; video coding; visual communication; CBERC; CBERC algorithm; CBERC threshold; H.261; H.263+; MPEG-1; MPEG-2; MPEG-4; coded video sequence; content-based error-resilient coding; decoded video artifacts reduction; error propagation; motion-compensated prediction; multi-point communication; packet video communications; point-to-point communication; robust transmission; unreliable packet networks; video coding standards; video content; worst-case scenario; Decoding; Feedback; Helium; MPEG 4 Standard; Propagation losses; Robustness; Transform coding; Video coding; Video compression; Video sequences;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
