Deligiannis, N., Barbarien, J., Jacobs, M., Munteanu, A., Skodras, A., & Schelkens, P. (2012). Side-information dependent correlation channel estimation in hash-based distributed video coding. IEEE Transactions on Image Processing, 21(April 2012), 1934-1949. http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6111476&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F83%2F4358840%2F06111476.pdf%3Farnumber%3D6111476

@article{0b33f7fdf71848cfb2868c50e238299e,
title = "Side-information dependent correlation channel estimation in hash-based distributed video coding",
abstract = "In the context of low-cost video encoding, distributed video coding (DVC) has recently emerged as a potential candidate for uplink-oriented applications. This paper builds on a correlation channel modeling concept which expresses the correlation noise as being statistically dependent on the side-information. Compared to classical side-information independent noise model-ing adopted in current DVC solutions, it is theoretically proven that side-information dependent modeling improves the Wyner-Ziv coding performance. Anchored in this finding, this paper proposes a novel algorithm for online estimation of the side-information dependent correlation channel parameters based on already decoded information. The proposed algorithm enables bit-plane-by-bit-plane successive refinement of the channel esti-mation leading to progressively improved accuracy. Additionally, the proposed algorithm is included in a novel DVC architecture which employs a competitive hash-based motion estimation tech-nique to generate high quality side-information at the decoder. Experimental results corroborate our theoretical gains and vali-date the accuracy of the channel estimation algorithm. The per-formance assessment of the proposed architecture shows remark-able and consistent coding gains over a germane group of state-of-the-art distributed and standard video codecs, even under strenuous conditions, that is, large groups of pictures (GOP) and highly irregular motion content.",
keywords = "distributed video coding, hash information, overlapped block motion estimation, correlation channel, online successively refined channel estimation, video coding",
author = "Nikolaos Deligiannis and Joeri Barbarien and Marc Jacobs and Adrian Munteanu and Athanassios Skodras and Peter Schelkens",
year = "2012",
month = apr,
language = "English",
volume = "21",
pages = "1934--1949",
journal = "IEEE Transactions on Image Processing",
issn = "1057-7149",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "April 2012",
}