Title :
Low-delay distributed multiple description coding for error-resilient video transmission
Author :
Liu, Wenhui ; Vijayanagar, Krishna Rao ; Kim, Joohee
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA
Abstract :
In this paper, a low-delay distributed multiple description coding (LD-DMDC) method that combines the principles of multiple description coding (MDC) and distributed video coding (DVC) has been proposed to further improve the error resilience of DVC. The proposed method generates two descriptions based on duplication and alternation of the discrete cosine transform (DCT) coefficients for the Wyner-Ziv (WZ) frames and by exploiting H.264/AVC´s dispersed flexible macroblock ordering (FMO) for the key frames. The proposed method makes efficient use of skip blocks to exploit temporal redundancies between successive frames and employs a binary arithmetic coding instead of iterative channel coding to reduce the system latency. Simulation results show that the proposed method is robust against transmission errors, while maintaining low encoder complexity and low system latency.
Keywords :
arithmetic codes; binary codes; channel coding; discrete cosine transforms; iterative decoding; video coding; H.264/AVC; Wyner-Ziv frames; binary arithmetic coding; discrete cosine transform; distributed multiple description coding; distributed video coding; error-resilient video transmission; flexible macroblock ordering; iterative channel coding; low-delay coding; system latency; temporal redundancies; Bit rate; Decoding; Encoding; Monitoring; Quantization; Redundancy; Resilience;
Conference_Titel :
Multimedia Signal Processing (MMSP), 2011 IEEE 13th International Workshop on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-1432-0
Electronic_ISBN :
978-1-4577-1433-7
DOI :
10.1109/MMSP.2011.6093823