Evaluating a feedback channel based transform domain Wyner-Ziv video codec
Image Communication
Distributed video coding: Selecting the most promising application scenarios
Image Communication
Source model for transform video coder and its application. I. Fundamental theory
IEEE Transactions on Circuits and Systems for Video Technology
Distributed video coding: trends and perspectives
Journal on Image and Video Processing - Special issue on distributed video coding
Perceptual-based distributed video coding
Journal of Visual Communication and Image Representation
Decoder-driven mode decision in a block-based distributed video codec
Multimedia Tools and Applications
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Wyner-Ziv is an emerging video coding paradigm based on the Slepian-Wolf and Wyner-Ziv theorems where video coding may be performed by exploiting the temporal correlation at the decoder and not anymore at the encoder as in conventional video coding. This approach should allow designing low-complexity encoders, targeting important emerging applications such as wireless surveillance and visual sensor networks, without any cost in terms of RD performance. However, the currently available WZ video codecs do not allow controlling the target quality in an efficient way which is a major limitation for some applications. In this context, the main objective of this paper is to propose an efficient quality control algorithm to maintain a uniform quality along time in low-encoding complexity WZ video coding by dynamically adapting the quantization parameters depending on the desired target quality without any a priori knowledge about the sequence characteristics. This objective will be reached in the context of the so-called Stanford WZ video codec architecture which is currently the most used in the literature.