29 search results - page 1 / 6 » Sparse Gradient Image Reconstruction Done Faster |
ICIP
2007
IEEE
14 years 5 months ago
2007
IEEE
In a wide variety of imaging applications (especially medical imaging), we obtain a partial set or subset of the Fourier transform of an image. From these Fourier measurements, we...
ICIP
2010
IEEE
13 years 9 months ago
2010
IEEE
The 2- 1 compressed sensing minimization problem can be solved efficiently by gradient projection. In imaging applications, the signal of interest corresponds to nonnegative pixel...
IVC
2007
13 years 11 months ago
2007
In an application where sparse matching of feature points is used towards fast scene reconstruction, the choice of the type of features to be matched has an important impact on th...
SIAMIS
2011
13 years 6 months ago
2011
The convergence rate is analyzed for the sparse reconstruction by separable approximation (SpaRSA) algorithm for minimizing a sum f(x) + ψ(x), where f is smooth and ψ is convex, ...
CVPR
2010
IEEE
14 years 7 months ago
2010
IEEE
In image restoration tasks, a heavy-tailed gradient distribution of natural images has been extensively exploited as an image prior. Most image restoration algorithms impose a spa...