IROS
2007
IEEE
14 years 8 months ago
2007
IEEE
— Toward obtaining a compact and multiresolution representation of 2D range scans, a wavelet framework is proposed for encoding an orientation measure called Running Angle (RA). ...
ICMCS
2008
IEEE
14 years 8 months ago
2008
IEEE
Segmenting the speech signals on the basis of time-frequency analysis is the most natural approach. Boundaries are located in places where energy of some frequency subband rapidly...
ICHIT
2009
Springer
14 years 8 months ago
2009
Springer
Foveation principles suggested by natural vision systems enable the construction of a proper mask that may modulate the coefficients given by the Discrete Wavelet Transform of an ...
SIGMOD
2005
ACM
15 years 2 months ago
2005
ACM
The Discrete Wavelet Transform is a proven tool for a wide range of database applications. However, despite broad acceptance, some of its properties have not been fully explored a...
ISBI
2004
IEEE
15 years 3 months ago
2004
IEEE
Ultrasound images are corrupted by a multiplicative noise, the speckle, which makes high level analysis difficult. Within each resolution cell a number of elementary scatterers re...
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ICDE
1999
IEEE
15 years 3 months ago
1999
IEEE
Time series stored as feature vectors can be indexed by multidimensional index trees like R-Trees for fast retrieval. Due to the dimensionality curse problem, transformations are ...
ICIP
2001
IEEE
15 years 3 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...
ICIP
2002
IEEE
15 years 3 months ago
2002
IEEE
In this paper, we propose an efficient low complexity compression scheme for densely sampled irregular 3D meshes. This scheme is based on 3D multiresolution analysis (3D Discrete ...
ICIP
2002
IEEE
15 years 3 months ago
2002
IEEE
This paper describes an expectation-maximization (EM) algorithm for wavelet-based image restoration (deconvolution). The observed image is assumed to be a convolved (e.g., blurred...
ICIP
2003
IEEE
15 years 3 months ago
2003
IEEE
In this paper, we propose a 3D geometry compression technique for densely sampled surface meshes. Based on a 3D multiresolution analysis (performed by a 3D Discrete Wavelet Transf...