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ICASSP
2011
IEEE
12 years 9 months ago
Sampling and reconstructing diffusion fields with localized sources
We study the spatiotemporal sampling of a diffusion field generated by K point sources, aiming to fully reconstruct the unknown initial field distribution from the sample measur...
Juri Ranieri, Amina Chebira, Yue M. Lu, Martin Vet...
ICIP
2007
IEEE
14 years 7 months ago
Tomographic Approach for Parametric Estimation of Local Diffusive Sources and Application to Heat Diffusion
We consider localized instantaneous sources that reside in a 2D diffusive environment. Our goal is to reconstruct the induced field from the measurements obtained by distributed s...
Ivana Jovanovic, Luciano Sbaiz, Martin Vetterli
ICASSP
2009
IEEE
14 years 6 days ago
Spatial super-resolution of a diffusion field by temporal oversampling in sensor networks
We study the spatial-temporal sampling of a linear diffusion field, and show that it is possible to compensate for insufficient spatial sampling densities by oversampling in tim...
Yue M. Lu, Martin Vetterli
ICASSP
2009
IEEE
13 years 3 months ago
Distributed sampling and reconstruction of non-bandlimited fields in sensor networks based on shift-invariant spaces
We use the theory and algorithms developed for so-called shiftinvariant spaces to develop a novel distributed architecture for sampling and reconstructing non-bandlimited fields i...
Gunter Reise, Gerald Matz
MVA
1990
13 years 6 months ago
Determining Surface Orientation by Uni-directional Photometric Flow Fields
In the Shape from Shading methods, an extended approach named Uni-directional Photometric Flow Fields is proposed in this paper. The reflectance property of the surface material i...
Hidekazu Tanaka, Yuji Iwahori, Naohiro Ishii