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» Sampling and Reconstruction of Operators
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91
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ICASSP
2011
IEEE
14 years 4 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...
IGARSS
2010
14 years 10 months ago
Scatterometer image reconstruction from aperture-filtered samples
This paper considers sampling and reconstruction theory with application to scatterometer image reconstruction. Backscatter imaging is approached as the inversion of a noisy apert...
Brent A. Williams, David G. Long
110
Voted
ICIP
2000
IEEE
16 years 2 months ago
POCS-Based Image Reconstruction from Irregularly-Spaced Samples
This paper presents a method for the reconstruction of a regularlysampled image from its irregularly-spaced samples. Such reconstruction is often needed in image processing and co...
Ryszard Stasinski, Janusz Konrad
98
Voted
WCE
2007
15 years 1 months ago
MR Image Reconstruction from Pseudo-Hex Lattice Sampling Patterns Using Separable FFT
Abstract— Common MRI sampling patterns in kspace, such as spiral trajectories, have nonuniform density and do not lie on a rectangular grid. We propose mapping the sampled data t...
Jae-Ho Kim, Fred L. Fontaine
99
Voted
ICIP
2006
IEEE
16 years 2 months ago
Efficient Reconstruction of Hexagonally Sampled Data using Three-Directional Box-Splines
Three-directional box-splines are particularly well-suited to interpolate and approximate hexagonally sampled data. In this paper, we propose a computationally efficient end-toend...
Laurent Condat, Dimitri Van De Ville, Michael Unse...