Results 11 to 20 of about 144,751 (159)
Image Authentication Using Distributed Source Coding [PDF]
We present a novel approach using distributed source coding for image authentication. The key idea is to provide a Slepian-Wolf encoded quantized image projection as authentication data. This version can be correctly decoded with the help of an authentic image as side information.
Yao-Chung, Lin +2 more
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This paper addresses the optimization of distributed compression in a sensor network. A direct communication among the sensors is not possible so that noisy measurements of a single relevant signal have to be locally compressed in order to meet the rate ...
Steffen Steiner +3 more
doaj +1 more source
Polar codes for distributed source coding [PDF]
A polar coding method to construct a distributed source coding scheme which can achieve any point on the dominant face of the Slepian‐Wolf rate region for sources with uniform marginals is proposed.
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Lattice-Based Robust Distributed Source Coding [PDF]
In this paper, we propose a lattice-based robust distributed source coding system for two correlated sources and provide a detailed performance analysis under the high resolution assumption. It is shown, among other things, that, in the asymptotic regime where 1) the side distortion approaches 0 and 2) the ratio between the central and side distortions
Dania Elzouki +2 more
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Repair Rates for Multiple Descriptions on Distributed Storage
In a traditional distributed storage system, a source can be restored perfectly when a certain subset of servers is contacted. The coding is independent of the contents of the source.
Anders Høst-Madsen +3 more
doaj +1 more source
Source Modeling for Distributed Video Coding [PDF]
This paper studies source and correlation models for Distributed Video Coding (DVC). It first considers a twostates HMM, i.e. a Gilbert-Elliott process, to model the bit-planes produced by DVC schemes. A statistical analysis shows that this model allows us to accurately capture the memory present in the video bit-planes.
Toto-Zarasoa, Velotiaray +2 more
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Lossless Coding for Distributed Streaming Sources [PDF]
40 pages, 11 figures, submitted to IT ...
Chang, Cheng +2 more
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Distributed Source Coding and Its Applications in Relaying-Based Transmission
Distributed source coding (DSC) schemes rely on separate encoding but joint decoding of statistically dependent sources, which exhibit correlation. DSC has numerous promising applications ranging from reduced-complexity handheld video communications to ...
Abdulah Jeza Aljohani +2 more
doaj +1 more source
Distributed Joint Source-Channel Coding in Wireless Sensor Networks
Considering the fact that sensors are energy-limited and the wireless channel conditions in wireless sensor networks, there is an urgent need for a low-complexity coding method with high compression ratio and noise-resisted features.
Lin Zhang, Xuqi Zhu, Yu Liu
doaj +1 more source
Polar codes for distributed hierarchical source coding
We show that polar codes can be used to achieve the rate-distortion functions in the problem of hierarchical source coding also known as the successive refinement problem. We also analyze the distributed version of this problem, constructing a polar coding scheme that achieves the rate distortion functions for successive refinement with side ...
Ye, Min, Barg, Alexander
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