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» Generalized Tree-Based Wavelet Transform
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ICIP
2009
IEEE
14 years 5 months ago
Higher-order Riesz Transforms And Steerable Wavelet Frames
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...
SSDBM
2003
IEEE
95views Database» more  SSDBM 2003»
13 years 10 months ago
A Quad-Tree Based Multiresolution Approach for Two-dimensional Summary Data
In many application contexts, like statistical databases, scientific databases, query optimizers, OLAP, and so on, data are often summarized into synopses of aggregate values. Su...
Francesco Buccafurri, Filippo Furfaro, Domenico Sa...
ICASSP
2009
IEEE
13 years 11 months ago
The fractional Hilbert transform and dual-tree Gabor-like wavelet analysis
We provide an amplitude-phase representation of the dual-tree complex wavelet transform by extending the fixed quadrature relationship of the dual-tree wavelets to arbitrary phas...
Kunal Narayan Chaudhury, Michael Unser
ISCAS
2008
IEEE
178views Hardware» more  ISCAS 2008»
13 years 11 months ago
3-D direction aligned wavelet transform for scalable video coding
— This paper presents a novel 3-D direction aligned wavelet transform for scalable video coding. A new generalized 3D directional threading technique is seamlessly incorporated i...
Yu Liu, King Ngi Ngan, Feng Wu
TMM
2008
86views more  TMM 2008»
13 years 4 months ago
Implementing the 2-D Wavelet Transform on SIMD-Enhanced General-Purpose Processors
Abstract--The 2-D Discrete Wavelet Transform (DWT) consumes up to 68% of the JPEG2000 encoding time. In this paper, we develop efficient implementations of this important kernel on...
Asadollah Shahbahrami, Ben H. H. Juurlink, Stamati...