Results 11 to 20 of about 280,124 (300)
Multiresolution Analysis Using Wavelet, Ridgelet, and Curvelet Transforms for Medical Image Segmentation [PDF]
The experimental study presented in this paper is aimed at the development of an automatic image segmentation system for classifying region of interest (ROI) in medical images which are obtained from different medical scanners such as PET, CT, or MRI ...
Shadi AlZubi, Naveed Islam, Maysam Abbod
doaj +2 more sources
On the Hilbert Transform of Wavelets [PDF]
Appears in IEEE Transactions on Signal Processing, vol. 59, no. 4, pp.
Chaudhury, Kunal Narayan, Unser, Michael
openaire +4 more sources
In the secured data communication scenario, image based Reversible Data Hiding (RDH) at transform domain is receiving its due popularity now. In research works so far, evaluation of transforms in RDH is very minor compared to that of image coding.
Ahmad Shaik, V. Thanikaiselvan
doaj +1 more source
The Berkeley Wavelet Transform: A Biologically Inspired Orthogonal Wavelet Transform [PDF]
We describe the Berkeley wavelet transform (BWT), a two-dimensional triadic wavelet transform. The BWT comprises four pairs of mother wavelets at four orientations. Within each pair, one wavelet has odd symmetry, and the other has even symmetry. By translation and scaling of the whole set (plus a single constant term), the wavelets form a complete ...
Ben D. B. Willmore +3 more
openaire +5 more sources
Using effective signal filtering methods to data processing from a fiber-optic temperature sensor [PDF]
The article deals with signal processing of a fiber-optic temperature sensor using extremal filtering and filtering with Wavelet transforms. The aim of this work is to find a way to reduce the response time in a fiber-optic temperature sensor by ...
I. A. Ershov
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This article introduces the design of symmetrical approximately shift-invariant fractional overcomplete wavelet transforms. First, a design scheme for the symmetrical low-pass filter with minimum-length was proposed, and then the corresponding highpass ...
SHEN Zheng-wei, SHI Tian, SHEN Ya-nan
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An efficient error resilience scheme based on wyner-ziv coding for region-of-Interest protection of wavelet based video transmission [PDF]
In this paper, we propose a bandwidth efficient error resilience scheme for wavelet based video transmission over wireless channel by introducing an additional Wyner-Ziv (WZ) stream to protect region of interest (ROI) in a frame.
Zhuo, X, Loo, KK, Cosmas, J, Yip, PY
core +6 more sources
Regularization of EIT reconstruction based on multi-scales wavelet transforms
Electrical Impedance Tomography (EIT) intends to obtain the conductivity distribution of a domain from the electrical boundary conditions. This is an ill-posed inverse problem usually solved on finite element meshes.
Gong Bo +3 more
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On the block wavelet transform applied to the boundary element method [PDF]
This paper follows an earlier work by Bucher et al. [1] on the application of wavelet transforms to the boundary element method, which shows how to reuse models stored in compressed form to solve new models with the same geometry but arbitrary load cases
Bucher, HF +3 more
core +1 more source
Effective lattice structures for separable two-dimensional orthogonal wavelet transforms [PDF]
Discrete two-dimensional orthogonal wavelet transforms find applications in many areas of analysis and processing of digital images. In a typical scenario the separability of two-dimensional wavelet transforms is assumed and all calculations follow the ...
Dariusz Puchala
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