46 search results - page 4 / 10 » Adaptive Directional Wavelet Transform Using Pre-directional... |
ICIP
2007
IEEE
14 years 8 months ago
2007
IEEE
This paper discusses how to utilize both magnitude and phase information obtained from the complex directional lter bank (CDFB) for the purpose of texture image retrieval. The rel...
ICIP
2004
IEEE
14 years 7 months ago
2004
IEEE
In this paper, we first propose a new family of geometrical image transforms that decompose images both radially and angularly. Our construction comprises two stages of filter ban...
CORR
2006
Springer
13 years 6 months ago
2006
Springer
While there is a very long tradition of approximating a data array by projecting row or column vectors into a lower dimensional subspace the direct approximation of a data matrix ...
TIP
2008
13 years 6 months ago
2008
In this paper, a new weighted adaptive lifting (WAL)-based wavelet transform is presented. The proposed WAL approach is designed to solve the problems existing in the previous adap...
ICIP
2004
IEEE
14 years 7 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...