253 search results - page 13 / 51 » Nonlinear image representation using divisive normalization |
ICCV
1999
IEEE
13 years 11 months ago
1999
IEEE
We investigate the use of linear and nonlinear principal manifolds for learning low-dimensional representations for visual recognition. Three techniques: Principal Component Analy...
ICIP
2002
IEEE
14 years 9 months ago
2002
IEEE
We consider the estimation of an unknown arbitrary 2D object shape from sparse noisy samples of its Fourier transform. The estimate of the closed boundarycurve is parametrized by ...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
Iterative shrinkage of sparse and redundant representations are at the heart of many state of the art denoising and deconvolution algorithms. They assume the signal is well approx...
CAIP
2011
Springer
12 years 7 months ago
2011
Springer
Abstract. We address the problem of jointly estimating the scene illumination, the radiometric camera calibration and the reflectance properties of an object using a set of images...
MICCAI
2010
Springer
13 years 5 months ago
2010
Springer
We address a novel problem domain in the analysis of optical coherence tomography (OCT) images: the diagnosis of multiple macular pathologies in retinal OCT images. The goal is to ...