1987 search results - page 16 / 398 » Directional filtering transform |
ICIP
2007
IEEE
14 years 1 months ago
2007
IEEE
Traditional 2D DCT implemented by separable 1D transform in horizontal and vertical directions does not take image orientation features in a local window into account. To improve ...
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
- Nearly all block-based transform schemes for image and video coding developed so far choose the 2-D discrete cosine transform (DCT) of a square block shape. With almost no except...
ICIP
2001
IEEE
14 years 9 months ago
2001
IEEE
Shift variance and poor directional selectivity, two major disadvantages of the discrete wavelet transform, have previously been circumvented either by using highly redundant, non...
JGTOOLS
2006
13 years 7 months ago
2006
Spherical harmonic transform plays an important role in research in shape description. Current computation methods involve expensive voxelization, and are prone to numerical error...
ICPR
2008
IEEE
14 years 8 months ago
2008
IEEE
This paper presents a new approach to measure texture directions and estimate illumination tilt angle of 3D surface textures by using mojette transform. Feature vectors are genera...