Efficient Distributed Video Coding System without Feedback Channel 


Vol. 37,  No. 12, pp. 1043-1053, Dec.  2012


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  Abstract

In distributed video coding (DVC) systems, the complexity of encoders is greatly reduced by removing the motion estimation operations in encoders, since the correlation between frames is utilized in decoders. The transmission of parity bits is requested through the feedback channel, until the related errors are corrected to decode the Wyner-Ziv frames. The requirement to use the feedback channel limits the application of DVC systems. In this paper, we propose an efficient method to remove the feedback channel in DVC systems. First, a simple side information generation method is proposed to calculate the amount of parity bits in the encoder, and it is shown that the proposed method yields good performance with low complexity. Then, by calibrating the theoretical entropy with three parameters, we can calculate the amount of parity bits in the encoder and remove the feedback channel. Moreover, an adaptive method to determine quantization parameters for key frames is proposed. Extensive computer simulations show that the proposed method yields better performance than conventional methods.

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  Cite this article

[IEEE Style]

H. Moon, C. Lee, S. Lee, "Efficient Distributed Video Coding System without Feedback Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 12, pp. 1043-1053, 2012. DOI: .

[ACM Style]

Hak-soo Moon, Chang-woo Lee, and Seong-won Lee. 2012. Efficient Distributed Video Coding System without Feedback Channel. The Journal of Korean Institute of Communications and Information Sciences, 37, 12, (2012), 1043-1053. DOI: .

[KICS Style]

Hak-soo Moon, Chang-woo Lee, Seong-won Lee, "Efficient Distributed Video Coding System without Feedback Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 12, pp. 1043-1053, 12. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880