Title :
A hierarchical synchronization technique based on the EREC for robust transmission of H.263 bit stream
Author :
Jung, Han Seung ; Kim, Rin-Chul ; Lee, Sang-Uk
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
4/1/2000 12:00:00 AM
Abstract :
We propose an error-resilient transmission technique for the H.263 compatible video data stream, based on the data-partitioning technique. The proposed algorithm employs the bit rearrangement technique of the error-resilience entropy coding in each layer, providing unequal error protection against the channel errors, without requiring additional side information. In addition, we propose the recovery algorithm for the lost or erroneous motion vectors. The proposed algorithm is implemented, based on the H.263 standard, and evaluated through intensive computer simulation. The experimental results demonstrate that the proposed algorithm provides acceptable performance both subjectively and objectively at various bit error rates and burst lengths
Keywords :
code standards; entropy codes; error correction codes; error statistics; image motion analysis; synchronisation; telecommunication standards; video coding; visual communication; BER; H.263 bit stream; H.263 standard; bit error rates; bit rearrangement; burst lengths; channel errors; computer simulation; data-partitioning; erroneous motion vectors recovery algorithm; error-resilience entropy coding; error-resilient transmission; experimental results; hierarchical synchronization; lost motion vectors recovery algorithm; performance; robust transmission; unequal error protection; video data stream; Bit error rate; Computer errors; Computer simulation; Degradation; Error correction codes; Forward error correction; Partitioning algorithms; Redundancy; Robustness; Streaming media;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
