We introduce a distributed source coding scheme called successive Wyner-Ziv coding scheme. We show that any point in the rate region of the quadratic Gaussian CEO problem can be achieved via the successive Wyner-Ziv coding. The notion of successive refinement in the single source coding is generalized to the distributed source coding scenario, which we refer to as distributed successive refinem...

We investigate the problem of successive refinement for Wyner-Ziv coding with degraded side information and obtain a complete characterization rate region quadratic vector Gaussian case. The achievability part is based on evaluation Tian-Diggavi inner bound that involves auxiliary random vectors. For converse part, matching outer obtained aid new extremal inequality. Herein, proof this inequali...

Wyner-Ziv coding enables low complexity video encoding with the motion estimation procedure shifted to the decoder. However, the accuracy of decoder motion estimation is often low, due to the absence of the input source frame (at the decoder). In this paper, we propose a novel Wyner-Ziv successive refinement approach to improve the motion compensation accuracy and the overall compression effici...

Many speech coding standards are based upon code-excited linear prediction (CELP), and it is desirable to develop layered coding methods that are compatible with this installed base of coders. We propose a layered speech coding structure that is universally compatible with all CELP-based coders. This structure encodes the reconstruction error signal from layer 1 using a lowdelay, adaptive tree ...

We study the mismatched successive refinement problem where one uses Gaussian codebooks to compress an arbitrary memoryless source with minimum Euclidean distance encoding under quadratic distortion measure. Specifically, we derive achievable refined asymptotics both joint excess-distortion probability (JEP) and separate probabilities (SEP) criteria. For second-order moderate deviations asympto...

The application of magnesium alloys is greatly limited because of their relatively low strength and ductility. An effective way to improve the mechanical properties of magnesium alloy is to refine the grains. As the race for better materials performance is never ending, attempts to develop viable techniques for microstructure refinement continue. Further refining of grain size requires, however...