The authors represent the standard ramp filter operator of the filtered-back-projection (FBP) reconstruction in different bases composed of Haar and Daubechies compactly supported wavelets. The resulting multiscale representation of the ramp-filter matrix operator is approximately diagonal. The accuracy of this diagonal approximation becomes better as wavelets with larger numbers of vanishing m...

We propose the information regularization principle for fusing information from sets of identical sensors observing a target phenomenon. The principle basically proposes an importance-weighting scheme for each sensor measurement based on the mutual information based pairwise statistical similarity matrix between sensors. The principle is applied to maximum likelihood estimation and particle fil...

An efficient method for the design of nonrecursive digital filters using the ultraspherical window function is proposed. Economies in computation are achieved in two ways. First, through an efficient formulation of the window coefficients, the amount of computation required is reduced to a small fraction of that required by standard methods. Second, the filter length and the independent window ...

environmental degradation and economic growth are two important proofs in sustainable developmentwhich are followed by steel industry. in this case, energy and environmental damages as sustainabilitypatterns of environment have been investigated in three different dust collectors to select the mostenvironmentally suitable dust collector for electric furnace. in this article, the consumption amo...

In JPEG2000, the Cohen–Daubechies–Feauveau (CDF) 9/7-tap wavelet filter implemented by using the conventional lifting scheme has two problems. The first problem is that the filter coefficients are remaining complex; second, the conventional lifting scheme ignores image edges in the coding process. In this article, we propose an effective wavelet lifting scheme to solve these problems. For this ...

This is a review paper .Review is carried out in two directions. Firstly, a survey is done to know to know the work done on TEM images and secondly to know how and where the basic filters which led to the evolution of number of other filters are being used in number of applications over the years and the effect of these denoising filters on normal images over the years. I. USAGE AND WORK DONE O...

Wavelet analysis can be used in local damage detection due to its ability of revealing discontinuities induced by the displacement field. This paper focuses on application wavelet detect and identify multiple damages using static deflection beams. The are located maxima lines their severity evaluated from a index obtained coefficients along corresponding lines. A series experimental tests were ...