Motivated by recent results in multiple description image coding over wireless networks, we propose a scheme for transmission of multiple descriptions through hybrid packet loss and additive white Gaussian noise channel. Each description is coded into multiple bitstreams by applying SPIHT coding on wavelet trees along spatial orientations and each stream is further compressed using arithmetic c...

We propose a peer-driven video streaming system that provides a reliable and high-performance video on-demand service. We encode each video into multiple low bit-rate substreams and distribute copies of the sub-streams from the participating peers. Each client receives the constituent multiple sub-streams from different serving peers, and combines them into the original video stream. When a ser...

We consider strategies for the lossy transmission of a zero mean Gaussian source over multiple channels. In one strategy, we employ single description coding of the source and duplicate this description over two independent channels. We also consider optimal, no excess joint rate, and no excess marginal rate multiple description coding over two independent channels. These strategies are compare...

Delivery of high quality video over a wide area network with large number of users poses great challenges for the video communication system. To ensure video quality, multiple descriptions have recently attracted various attention as a way of encoding and visual information delivery over wireless network. We propose a new efficient multiple description coding (MDC) technique. Quincunx lattice s...

Multiple description coding (MDC) with side information (SI) at the receiver is particularly relevant for robust transmission in sensor networks where correlated data is being transmitted to a common receiver, as well as for robust video compression. The rate-distortion region for this problem has been established in (Vaishampayan 1993). Here, we focus on the design of a practical MDC scheme wi...

We propose multiple description (MD) video coders which use motion compensated predictions. Our MD video coders utilize MD transform coding and three separate prediction paths a t the encoder, to mimic the three possible scenarios at the decoder: both descriptions received or either of the single descriptions received. We provide three different algorithms to control the mismatch between the pr...

This paper presents a novel H.264-based video coding scheme for a scalable delivery system which operates over heterogeneous networks and distributes real-time streaming video to diverse types of clients. The video coding scheme is a hybrid combination of discrete wavelet transform (DWT) and H.264. In the algorithm, an input video sequence is first decomposed into a fundamental sequence and a n...

We propose an algorithm to compute a modification of the classical discrete Karhunen-Loeve Transform (KLT) useful when some of the coefficients are randomly unavailable for reconstruction. Such a scheme can provide Multiple Description Coding (MDC) for signals and images transported by lossy packet links. The modification of the KLT is based on a “correlating” block that, from knowledge of the ...

Multiple description coding (MDC) is source coding for multiple channels such that a decoder which receives an arbitrary subset of the channels may produce a useful reconstruction. Orchard et al. [1] proposed a transform coding method for MDC of pairs of independent Gaussian random variables. This paper provides a general framework which extends multiple description transform coding (MDTC) to a...