17 search results - page 1 / 4 » Complex Wavelet Bases, Steerability, and the Marr-Like Pyram... |
TIP
2008
13 years 7 months ago
2008
Our aim in this paper is to tighten the link between wavelets, some classical image-processing operators, and David Marr's theory of early vision. The cornerstone of our appro...
ISCAS
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this paper, a modified version of the complex directional pyramid (PDTDFB) is proposed. Unlike the previous approach, the new FB provides an approximately tight-frame decom...
ISCAS
2006
IEEE
14 years 1 months ago
2006
IEEE
— In this paper, the shift-invariant complex directional filter bank (CDFB) is proposed for texture image retrieval. By combining the Laplacian pyramid and the CDFB, a new image...
ICIP
2008
IEEE
14 years 9 months ago
2008
IEEE
We introduce a new semi-orthogonal complex wavelet basis of L2(R2 ). The basis functions are associated to the complex gradient-Laplace operator, which plays a central role in ima...
ICIP
2009
IEEE
14 years 8 months ago
2009
IEEE
We introduce an Nth-order extension of the Riesz transform in d dimensions. We prove that this generalized transform has the following remarkable properties: shift-invariance, sca...