Original z-bu er method is a very e cient method for image generation. The limitation is that it introduces aliases into the output image. Although many di erent kinds of methods have been published to address this problem. most of them su er from requiring a large memory space, demanding for high computational power, or having some other limitations. In this paper, we propose a simple anti-ali...

Hidden Markov models are widely used to describe single channel currents from patch-clamp experiments. The inevitable anti-aliasing filter limits the time resolution of the measurements and therefore the standard hidden Markov model is not adequate anymore. The notion of time-interval omission has been introduced where brief events are not detected. The developed, exact solutions to this proble...

We define texture mapping as an optimization problem for which the goal is to preserve the maximum amount of information in the mapped texture. We derive a solution that is optimal in the least-squares sense and that corresponds to the pseudo-inverse of the texturemapping transformation. In practice, a first-order approximation of the least-squares solution is used as an initial estimate for th...

Several methods for the computation of the discrete Wigner Distribution (DWD) through the use of two-dimensional (2-D) analytic signals have been proposed, depending of the direction of the phase shift. Most of the methods cope the problem of aliasing of the DWD by lowpass prefiltering the spectrum but reducing spatial frequency support. In this correspondence, a new method for 2-D DWD free of ...

I propose a method for antialiasing Kirchhoff operators, which switches between interpolation in time and interpolation in space depending on the operator dips. The method is a generalization of Hale’s technique for dip moveout antialiasing. It is applicable to a wide variety of integral operators and compares favorably with the popular temporal filtering technique. Simple synthetic examples de...

This note calculates the requirements on the anti-aliasing filter for the read-out of the fluorescence detector of the AUGER experiment. The filter order and its cut-off frequency are related to the error in amplitude reconstruction. 1 System transfert functions The Fluorescence Detector read-out channel consist of a current preamplifier followed by a low pass anti-aliasing filter and a samplin...

The Modal Assurance Criterion (MAC) has been used as a measure of correlation between measured and predicted mode shapes for many years. However, since the MAC only considers the mode shape correlation, both an auto-MAC plot (to assess the degree of spatial aliasing) and a natural frequency comparison plot are usually required in order to determine the overall correlation/correspondence of the ...

A new technique is proposed to reduce the computational complexity of the multiple signal classification (MUSIC) algorithm for direction-of-arrival (DOA) estimate using a uniform linear array (ULA). The steering vector of the ULA is reconstructed as the Kronecker product of two other steering vectors, and a new cost function with spatial aliasing at hand is derived. Thanks to the estimation amb...

Introduction: Breast cancer is the most prevalent type of cancer and the second leading cause of mortality amongst Canadian women [1]. Regular mammography screening is currently the best method of early detection. Recently, a 10-year study of the Ontario Breast Screening Program revealed that not all screening centers are the same [2]. In particular, sites with digital x-ray detectors that acqu...

An anti-aliasing filter that incorporates a sampler is proposed to precede noise-shaping analog-to-digital converters (ADCs), such as discrete-time ΔΣ modulators. The architecture of the proposed anti-aliasing filter is inspired by the implicit antialiasing filtering property of CT ΔΣ modulators. However, contrary to CT ΔΣ modulators, the proposed anti-aliasing filter is not sensitive to clock ...