The aim of this work is to highlight and discuss a new paradigm for representing high-dynamic range (HDR) images that can be used for both its coding and describing its multimedia content. In particular, the new approach defines a new representation domain that, conversely from the classical compressed one, enables to identify and exploit content metadata. Information related to content are use...

bstract. In this paper, a multiple description image coding cheme is proposed to facilitate the transmission of images over edia with possible packet loss. The proposed method is based on nding the optimal reconstruction filter coefficients that will be used o reconstruct lost descriptions. For this purpose initially, the original mage is downsampled and each subimage is coded using standard PE...

Loss of descriptions of stochastic processes transmitted over unreliable channels is typical in communication network. An intuitive approach to address this problem is to send more than one descriptions of the same sources and hope that at least one description can survive. Each description is supposed to be good enough to meet some decoder requirement if it get through itself. So these descrip...

In this work, we present a multiple description coding (MDC) scheme for reliable transmission of compressed three dimensional (3-D) meshes. It trades off reconstruction quality for error resilience to provide the best expected reconstruction of 3-D mesh at the decoder side. The proposed scheme is based on multiresolution geometry compression achieved by using wavelet transform and modified SPIH...

Pier Luigi Dragotti1 and Martin Vetterli1;2 1 Dept. of Electrical Engineering, Swiss Federal Institute of Technology CH-1015 Lausanne, Switzerland 2 EECS Dept., UC Berkeley CA 947020 e-mail: fdragotti,[email protected] http://lcavwww.epfl.ch Abstract | Multiple description coding (MDC) is a source coding technique for information transmission over unreliable networks. In MDC, the coder...

The paper describes an efficient method to achieve Multiple Description Coding (MDC) for video streaming applications. The idea is to use a JPEG-like syntax to represent an ordered sequence of the coefficients, alternately distributed among the two descriptors. The ordering procedure allows an efficient interpolation of the missing coefficients, and then an almost seamless reconstruction from a...

In this paper, a novel wavelet-based multiple description coding (MDC) is proposed with dual decomposition (DD) and cross packetization (CP). Through dual decomposition, each description has two parts, the primary and the complementary. The former contains the structural information, including the positions and signs of significant coefficients, whereas the latter contains the residual data, wh...

In this paper, a source coding technique exploiting packet path diversity is presented, which combines the individual benefits of MDC (multiple description coding) and LC (layer coding) for video transmission over wireless networks. Performance comparisons between LC and MDC are discussed at the beginning of this paper. Their advantages and disadvantages are concluded. An improved coding techni...

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 at 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 pred...

Scalable multiple-description (MD) coding allows for fine-grain rate adaptation as well as robust coding of the input source. In this paper, we present a new approach for scalable MD coding of images, which couples the multiresolution nature of the wavelet transform with the robustness and scalability features provided by embedded multiple-description scalar quantization (EMDSQ). Two coding sys...