Increasing heterogeneity of networks and diversity of user capabilities have determined and sustained a strong interest in robust coding of visual content and flexible adaptation of the bitstreams to network and user conditions. As a result, several methods for robust coding and transmission have been proposed that include multiple description coding, motioncompensated subband video coding, joi...

In this paper, we present a framework for multiterminal video compression (MTVC) that exploits the geometric constraints between cameras with overlapping fields of view, and then uses distributed source coding on corresponding points in two or more views. There are two main parts of the paper a Distributed Motion Estimation (DME) algorithm and a Distributed Source Coding (DSC) algorithm. The no...

This work provides new results for the separated encoding of correlated discrete memoryless sources. We address the scenario where an arbitrary number of auxiliary sources (a.k.a. helpers) are supposed to help decode a single primary source errorless. The rate-distortion analysis of such a system establishes the so-called many-help-one problem. We focus on the case in which the auxiliary source...

The distributed source coding problem, introduced by Slepian and Wolf, is finding application in diverse areas ranging from sensor networks to robust videocompression to compression of encrypted data. Such applications have led to a flurry of recent work in practical code constructions. However, most of these constructions are designed for independent identically distributed random source model...

We propose a joint encryption and compression (JEC) scheme with emphasis on application to video data. The proposed JEC scheme uses the philosophy of distributed source coding with side information to reduce the complexity of the compression process and at the same time uses cryptographic principles to ensure that security is built into the scheme. The joint distributed compression and encrypti...

In this paper we propose a joint source-channel coding scheme for transmission of images over noisy channels. In this scheme, the interaction between the source coding and the channel coding is through a small number of parameters. A robust source coder based on classiication of coeecients of Discrete Wavelet Transform of the image is coupled with a exible error control scheme which uses a bank...

Distributed Arithmetic Coding (DAC) is an effective implementation of Slepian-Wolf coding, especially for short data blocks. To research its properties, the concept of DAC codeword distribution along proper and wrong decoding paths has been introduced. For DAC codeword distribution of equiprobable binary sources along proper decoding paths, the problem was formatted as solving a system of funct...

In current interframe video compression systems, the encoder performs predictive coding to exploit the similarities of successive frames. The Wyner-Ziv Theorem on source coding with side information available only at the decoder suggests that an asymmetric video codec, where individual frames are encoded separately, but decoded conditionally (given temporally adjacent frames) could achieve simi...

We propose distributed asynchronous algorithms for network coding in multi-source multicast networks with cycles. Our algorithms find an acyclic subset of connections between links, and set up a network code over these connections. They offer advantages in terms of link usage and coding complexity over previous distributed algorithms based on random coding, while requiring modest additional coo...