Solving inverse problems with piecewise linear estimators: From Gaussian mixture models to structured sparsity

G Yu, G Sapiro, S Mallat - IEEE Transactions on Image …, 2011 - ieeexplore.ieee.org
A general framework for solving image inverse problems with piecewise linear estimations is
introduced in this paper. The approach is based on Gaussian mixture models, which are …

Nonrigid registration of dynamic medical imaging data using nD+ t B-splines and a groupwise optimization approach

CT Metz, S Klein, M Schaap, T van Walsum… - Medical image …, 2011 - Elsevier
A registration method for motion estimation in dynamic medical imaging data is proposed.
Registration is performed directly on the dynamic image, thus avoiding a bias towards a …

Spatiotemporal motion estimation for respiratory‐correlated imaging of the lungs

J Vandemeulebroucke, S Rit, J Kybic… - Medical …, 2011 - Wiley Online Library
Purpose: Four‐dimensional computed tomography (4D CT) can provide patient‐specific
motion information for radiotherapy planning and delivery. Motion estimation in 4D CT is …

Linear methods for image interpolation

P Getreuer - Image Processing On Line, 2011 - ipol.im
Linear Methods for Image Interpolation Page 1 Published in Image Processing On Line on
2011–09–27. Submitted on 2011–00–00, accepted on 2011–00–00. ISSN 2105–1232 c 2011 …

B-spline explicit active surfaces: an efficient framework for real-time 3-D region-based segmentation

D Barbosa, T Dietenbeck, J Schaerer… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
A new formulation of active contours based on explicit functions has been recently
suggested. This novel framework allows real-time 3-D segmentation since it reduces the …

Multichannel sampling of pulse streams at the rate of innovation

K Gedalyahu, R Tur, YC Eldar - IEEE Transactions on Signal …, 2011 - ieeexplore.ieee.org
We consider minimal-rate sampling schemes for infinite streams of delayed and weighted
versions of a known pulse shape. The minimal sampling rate for these parametric signals is …

Accuracy enhancement of digital image correlation with B-spline interpolation

L Luu, Z Wang, M Vo, T Hoang, J Ma - Optics letters, 2011 - opg.optica.org
The interpolation algorithm plays an essential role in the digital image correlation (DIC)
technique for shape, deformation, and motion measurements with subpixel accuracies. At …

Group-lasso on splines for spectrum cartography

JA Bazerque, G Mateos… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
The unceasing demand for continuous situational awareness calls for innovative and large-
scale signal processing algorithms, complemented by collaborative and adaptive sensing …

Semi-automatic construction of reference standards for evaluation of image registration

K Murphy, B van Ginneken, S Klein, M Staring… - Medical image …, 2011 - Elsevier
Quantitative evaluation of image registration algorithms is a difficult and under-addressed
issue due to the lack of a reference standard in most registration problems. In this work a …

Bits from photons: Oversampled image acquisition using binary poisson statistics

F Yang, YM Lu, L Sbaiz… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
We study a new image sensor that is reminiscent of a traditional photographic film. Each
pixel in the sensor has a binary response, giving only a 1-bit quantized measurement of the …