24 September 2013 An encoder rate control method for unidirectional distributed video coding
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Abstract
Typical distributed video coding architecture always controls rate at the decoder via a feedback channel, which is not realistic in application. In order to remove the feedback channel, an efficient encoder rate control method is proposed for unidirectional distributed video coding in this paper. First a low-complexity motion estimation method is proposed to create estimated side information at the encoder, in which the motion consistency between frames is utilized to reduce the search range and obtain accurate motion vectors. Then the conditional entropy of each bitplane is computed based on the inter-bitplane correlation, which is further curve-fitted as the estimated rate. Experimental results show that our proposed encoder rate control method could estimate the required rate accurately with much lower complexity.
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Juan Song, Juan Song, Peiyi Shen, Peiyi Shen, Liang Zhang, Liang Zhang, Keyan Wang, Keyan Wang, } "An encoder rate control method for unidirectional distributed video coding", Proc. SPIE 8871, Satellite Data Compression, Communications, and Processing IX, 887103 (24 September 2013); doi: 10.1117/12.2022584; https://doi.org/10.1117/12.2022584
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