1392 search results - page 45 / 279 » Image Denoising with Directional Bases |
TSP
2008
14 years 9 months ago
2008
Multidimensional hourglass filter banks decompose the frequency spectrum of input signals into hourglass-shaped directional subbands, each aligned with one of the frequency axes. T...
NIPS
2003
14 years 11 months ago
2003
— One way of image denoising is to project a noisy image to the subspace of admissible images derived, for instance by PCA. However, a major drawback of this method is that all p...
ICMCS
2008
IEEE
15 years 4 months ago
2008
IEEE
In content based image analysis and retrieval, texture feature is an essential component due to its strong discriminative power. Directionality is one of the most significant text...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
In this paper, we present a novel image interpolation method based on variational models with both smoothing and orientation constraints. By introducing the orientation constraint...
BIOID
2008
14 years 11 months ago
2008
Abstract. In this contribution, the vulnerabilities of iris-based recognition systems to direct attacks are studied. A database of fake iris images has been created from real iris ...