Layered Wyner-Ziv Video Coding: A New Approach to Video Compression and Delivery. (August 2007) Qian Xu, B.S., University of Science & Technology of China; M.S., Texas A&M University Chair of Advisory Committee: Dr. Zixiang Xiong Following recent theoretical works on successive Wyner-Ziv coding, we propose a practical layered Wyner-Ziv video coder using the DCT, nested scalar quantization, and ...

In this work, we investigate how to automatically reassign the manually annotated labels at the image-level to those contextually derived semantic regions. First, we propose a bi-layer sparse coding formulation for uncovering how an image or semantic region can be robustly reconstructed from the over-segmented image patches of an image set. We then harness it for the automatic label to region a...

We proposed a context-based binary arithmetic coding to improve entropy coding of the enhancement layer for the H.26Lbased Fine Granularity Scalability (FGS). Instead of independent bit-plane coding, we exploit correlation between various bitplanes and neighboring coefficients. For each bit-plane, we perform significant/refinement bit partition and construct contexts separately in terms of ener...

The H.264/AVC standard represents an important step in the evolution of video coding standards since it offers a significant improvement in terms of rate-distortion efficiency by providing more than a factor of two in bit-rate savings against the popular MPEG-2 Video standard. In this work, a new video coding scheme which combines the fine grain scalability properties of the MPEG-4 FGS standard...

This paper presents a generic, scalable, efficient shape coding scheme for scalable object-oriented visual texture. The base-layer coding scheme used is similar to the binary CAE coding scheme adopted in MPEG-4 video. The proposed scheme introduces a new set of generic contexts to efficiently encode (predict) enhanced shape layer based on the lower spatial layer using a context-based arithmetic...

In the spirit of BLAST systems, this paper proposes a novel layered space-time (ST) coding scheme. By slicing the two-dimensional ST code into a stack of one-dimensional so-called layer codes, ST coding and decoding are performed in a layer by layer fashion. Because d$erent layers are transmitted independently, the proposed scheme is capable of supporting considerably higher transmission rates ...

The problem of designing physical-layer network coding (PNC) schemes via nested lattices is considered. Building on the compute-and-forward (C&F) relaying strategy of Nazer and Gastpar, who demonstrated its asymptotic gain using information-theoretic tools, an algebraic approach is taken to show its potential in practical, non-asymptotic, settings. A general framework is developed for studying ...

The previous schemes are introduced, including traditional network coding (NC) scheme, physical-layer network coding (PNC) scheme, soft network coding (SNC) scheme and pseudo physical-layer network coding (PPNC) scheme. As an improved scheme of PNC, PPNC does not need synchronization mechanism, however its BER performance gets worse due to the hard decision applied on the relay node. The new pr...

entropy coding, compression, complexity This introduction to arithmetic coding is divided in two parts. The first explains how and why arithmetic coding works. We start presenting it in very general terms, so that its simplicity is not lost under layers of implementation details. Next, we show some of its basic properties, which are later used in the computational techniques required for a prac...