28 January 2009 New side information-generation method based on multiple reference frames for distributed video coding
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Abstract
With the rapid development of wireless video communication and remote monitoring, the encoder is required to be low-complexity and low-power. Distributed video coding effectively reduces the complexity of encoder, since it shifts a majority of computation to the decoder. Frame interpolation is a key component of typical DVC system. It reconstructs the WZ frame based on the intra coded key frame, namely side information generation. The fewer differences between the side information and original WZ frame corresponds to the lower translating bit rate. In this paper, we carry out a new motion compensated interpolation based on non-uniform motion trajectory to refine the side information. Multiple reference frames is applied to fulfill our proposal. Testing results show that the proposed scheme improves the PSNR by 0.3-0.5dB in comparison with hierarchical block matching algorithm, and upgrades the rate-distortion performance in a certain degree.
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Rong Ke Liu, Zhi Yue, Wei Hu, "New side information-generation method based on multiple reference frames for distributed video coding", Proc. SPIE 7256, Multimedia on Mobile Devices 2009, 725609 (28 January 2009); doi: 10.1117/12.806161; https://doi.org/10.1117/12.806161
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