Results 241 to 250 of about 307,372 (292)
Hybrid spam filtering for mobile communication [PDF]
Computers and Security, 2010 6 pages, 5 figures, 1 ...
Hyoungshick Kim
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2015 International Symposium on Computer Science and Software Engineering (CSSE), 2015
A variety of methods for images noise reduction has been developed so far. Most of them successfully remove noise but their edge preserving capabilities are weak. Therefore bilateral image filter is helpful to deal with this problem. Nevertheless, their performances depend on spatial and photometric parameters which are chosen by user.
DEMİRCİ, RECEP +2 more
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A variety of methods for images noise reduction has been developed so far. Most of them successfully remove noise but their edge preserving capabilities are weak. Therefore bilateral image filter is helpful to deal with this problem. Nevertheless, their performances depend on spatial and photometric parameters which are chosen by user.
DEMİRCİ, RECEP +2 more
openaire +2 more sources
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006
Known forms of Wiener filter do not adequately address the discrete-time signal processing of continuous random processes. In this paper, we first formulate this problem and subsequently derive its solution. The crux of the work is the development of an autocorrelation function invariant discrete equivalent of a continuous system.
Mohammad Bilal Malik, John R. Deller Jr.
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Known forms of Wiener filter do not adequately address the discrete-time signal processing of continuous random processes. In this paper, we first formulate this problem and subsequently derive its solution. The crux of the work is the development of an autocorrelation function invariant discrete equivalent of a continuous system.
Mohammad Bilal Malik, John R. Deller Jr.
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IEEE Transactions on Industrial Electronics, 2010
This paper presents results of a comparative study of two possible hybrid filter topologies, comprised of a passive and active stage, which can be implemented in any general dc supply distribution system. The main filter task is to mitigate current dynamics in the dc distribution system in order to prolong the operational life of delicate dc supplies ...
Simon Ostroznik +2 more
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This paper presents results of a comparative study of two possible hybrid filter topologies, comprised of a passive and active stage, which can be implemented in any general dc supply distribution system. The main filter task is to mitigate current dynamics in the dc distribution system in order to prolong the operational life of delicate dc supplies ...
Simon Ostroznik +2 more
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A hybrid filter for image enhancement
Proceedings., International Conference on Image Processing, 2002We present a new hybrid filter design methodology. Our hybrid filter consists of a nonlinear impulsive noise filter and a fuzzy weighted linear filter. This hybrid filter can efficiently remove large amounts of mixed Gaussian and impulsive noise while preserving the image details. The performance and robust stability of the proposed filter are compared
Shaomin Peng, Lori Lucke
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IEEE Transactions on Acoustics, Speech, and Signal Processing, 1987
This paper introduces a new generalized class of median-type filters which we call FIR-median hybrid (FMH) filters. The input signal x(n) is filtered with M linear phase FIR filters, and the output of the FMH filter is the median of the outputs of the FIR filters.
Pekka Heinonen, Yrjö Neuvo
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This paper introduces a new generalized class of median-type filters which we call FIR-median hybrid (FMH) filters. The input signal x(n) is filtered with M linear phase FIR filters, and the output of the FMH filter is the median of the outputs of the FIR filters.
Pekka Heinonen, Yrjö Neuvo
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An In/Post-Loop Deblocking Filter With Hybrid Filtering Schedule
IEEE Transactions on Circuits and Systems for Video Technology, 2007In this paper, we propose a high-throughput deblocking filter to perform the in-loop or post-loop filtering process for different standard requirements. The performance improvement is very mild if we replace a post-loop filter with an in-loop filter. To alleviate this problem, we derive an integration-oriented algorithm that can be reconfigured as the ...
Tsu-Ming Liu, Chen-Yi Lee
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Cell Hybridization by Electrofusion on Filters
Analytical Biochemistry, 2002Electric field pulses induce permeabilization and associated fusogenicity in cell membranes. Electrofusion of cells is usually performed in two steps: the first is the creation of close intercellular contacts; the second is an application of electric pulses that induces membrane fusion.
Corinne, Ramos +2 more
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IEEE Transactions on Signal Processing, 1992
Summary: A new class of nonlinear filters, the so-called class of multidirectional infinite impulse response median hybrid filters, is presented and analyzed. The input signal is processed twice using a linear shift- invariant infinite impulse response filtering module: once with normal causality and a second time with inverted causality.
Peter H. Bauer +2 more
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Summary: A new class of nonlinear filters, the so-called class of multidirectional infinite impulse response median hybrid filters, is presented and analyzed. The input signal is processed twice using a linear shift- invariant infinite impulse response filtering module: once with normal causality and a second time with inverted causality.
Peter H. Bauer +2 more
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International Journal of Circuit Theory and Applications, 1995
AbstractNarrow bandwidth bandstop filters or ‘notch filters’ are frequently required in both communication and electronic warfare systems. In the latter case the ability to switch into an ‘allpass’ state with a minimum level of loss and time delay distortion is vital. Furthermore, in both cases a level of 20‐30 dB rejection is normally required.
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AbstractNarrow bandwidth bandstop filters or ‘notch filters’ are frequently required in both communication and electronic warfare systems. In the latter case the ability to switch into an ‘allpass’ state with a minimum level of loss and time delay distortion is vital. Furthermore, in both cases a level of 20‐30 dB rejection is normally required.
openaire +1 more source