187 search results - page 13 / 38 » Directional wavelet transforms and frames |
TMI
2008
13 years 7 months ago
2008
In this article, we propose an automatic method to detect microaneurysms in retina photographs. Microaneurysms are the most frequent and usually the first lesions to appear as a co...
ISCAS
2008
IEEE
14 years 2 months ago
2008
IEEE
— In this paper, a new statistical model is proposed for modeling the nature images in the transform domain. We demonstrate that the von Mises distribution (VM) fits accurately ...
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
In this paper we propose a geometrical entropy coder to compress images with geometry. Our proposed scheme works on quantized coefficients of the discrete wavelet transform (DWT)....
DCC
2002
IEEE
14 years 7 months ago
2002
IEEE
Vector wavelet transforms for vector-valued fields can be implemented directly from multiwavelets; however, existing multiwavelets offer surprisingly poor performance for transfor...
DICTA
2003
13 years 9 months ago
2003
In this paper we review a number of approaches to reducing, or removing, the problem of shift variance in the discrete wavelet transform (DWT). We describe a generalization of the ...