593 search results - page 15 / 119 » Nonlinear Approximation and Image Representation using Wavel... |
81
Voted
ICIP
2004
IEEE
15 years 11 months ago
2004
IEEE
Using the concepts of two-dimensional Hilbert transform and analytic signal, we construct a new quaternion wavelet transform (QWT). The QWT forms a tight frame and can be efficien...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
This paper discusses a method for the construction of nonlinear 2D wavelet decompositions using an adaptive update lifting scheme. A very interesting aspect is that the decomposit...
65
Voted
PG
2002
IEEE
15 years 2 months ago
2002
IEEE
We present the light field oracle, a novel mathematical concept for the acquisition, processing and representation of light fields. We first compute a hierarchical representati...
108
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ISCAS
2006
IEEE
15 years 3 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...
CGF
1999
14 years 9 months ago
1999
This work explores how three techniques for defining and representing curves and surfaces can be related efficiently. The techniques are subdivision, least-squares data fitting, a...