TY - GEN
T1 - Error resilient scalability for video bit-stream over heterogeneous packet loss networks
AU - Zhang, Dong
AU - Guo, Yi
AU - Li, Houqiang
AU - Chen, Chang Wen
PY - 2010
Y1 - 2010
N2 - Robust transmission of compressed video bit-streams over heterogeneous packet loss network is one of the key challenges in the contemporary video communication system. Recent researches have focused on enhancing error resilience of bit-stream through the deployment of transcoder between wired and wireless networks. However, the conventional error resilient algorithms (e.g., Intra refresh) through cascading decoding and encoding processes usually have high degree of complexity. We introduce in this paper a completely new concept of error resilient scalability. We develop an extremely low complexity scheme based on redundant pictures information. In this scheme, redundant picture information is generated at the encoder and can be applied at media gateway to determine the redundant quantity of bit-stream according to the packet loss rate of access network. By transmitting compressed bit-stream together with redundant picture information, we are able to achieve the desired error resilient scalability of video bit-stream at the media gateway for heterogeneous networks. Joint rate source-channel-distortion model is adopted to optimize the generation of redundant picture information under various packet loss rates. Experimental results demonstrate expected effectiveness of the proposed scheme in error resilience scalability.
AB - Robust transmission of compressed video bit-streams over heterogeneous packet loss network is one of the key challenges in the contemporary video communication system. Recent researches have focused on enhancing error resilience of bit-stream through the deployment of transcoder between wired and wireless networks. However, the conventional error resilient algorithms (e.g., Intra refresh) through cascading decoding and encoding processes usually have high degree of complexity. We introduce in this paper a completely new concept of error resilient scalability. We develop an extremely low complexity scheme based on redundant pictures information. In this scheme, redundant picture information is generated at the encoder and can be applied at media gateway to determine the redundant quantity of bit-stream according to the packet loss rate of access network. By transmitting compressed bit-stream together with redundant picture information, we are able to achieve the desired error resilient scalability of video bit-stream at the media gateway for heterogeneous networks. Joint rate source-channel-distortion model is adopted to optimize the generation of redundant picture information under various packet loss rates. Experimental results demonstrate expected effectiveness of the proposed scheme in error resilience scalability.
UR - https://www.scopus.com/pages/publications/77956002892
U2 - 10.1109/ISCAS.2010.5537585
DO - 10.1109/ISCAS.2010.5537585
M3 - Conference contribution
AN - SCOPUS:77956002892
SN - 9781424453085
T3 - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
SP - 4201
EP - 4204
BT - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
T2 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Y2 - 30 May 2010 through 2 June 2010
ER -