نتایج جستجو برای: adaptive local projection

تعداد نتایج: 774644  

Journal: :Indonesian Journal of Computer Science 2023

Water companies utilize water meters to measure and calculate usage bills. However, the current process employed by PDAM requires redundant resources, as it involves taking photos of each customer's house having other officers read numbers from meter images, resulting in inefficiency. The problem is further compounded neglect improper maintenance meters, with some being buried garbage or soil. ...

Journal: :EURASIP J. Adv. Sig. Proc. 2003
Kaaren L. May Tania Stathaki Aggelos K. Katsaggelos

Spatially adaptive intensity bounds on the image estimate are shown to be an effective means of regularising the ill-posed image restoration problem. For blind restoration, the local intensity constraints also help to further define the solution, thereby reducing the number of multiple solutions and local minima. The bounds are defined in terms of the local statistics of the image estimate and ...

1996
Scott C. Douglas

The recently-introduced fast aane projection (FAP) adaptive lter has performance rivalling that of the RLS adaptive lter in many situations. However , the sliding-window RLS algorithm embedded within the FAP adaptive lter can be too complex to implement in some cases. In this paper, we describe an alternate implementation of the FAP adaptive lter that uses orthogonal transforms to approximately...

2007
Aaron T. Deever Sheila S. Hemami

Reversible integer wavelet transforms are increasingly popular in lossless image compression, as evidenced by their use in the recently developed JPEG2000 image coding standard 1]. In this paper, a projection technique is described that exploits non-orthogonality among transform basis vectors to derive nal lifting steps for wavelet transforms. Additionally , projection-based predictions of deta...

Updating Optimal Coefficients and Selected Observations Affine Projection is an effective way to reduce the computational and power consumption of this algorithm in the application of adaptive filters. On the other hand, the calculation of this algorithm can be reduced by using subbands and applying the concept of filtering the Set-Membership in each subband. Considering these concepts, the fir...

2013
Martin J. Gander Laurence Halpern

Adaptive mesh refinement techniques are well established and widely used for space discretizations. In contrast, local time stepping is much less used, and the corresponding techniques are less mature, needing delicate synchronization steps, which involve interpolation, extrapolation or projection. These operations can have adverse effects on the stability, and can also destroy important geomet...

Journal: :CoRR 2009
Joseph Shtok Michael Zibulevsky Michael Elad

In this work we explore direct reconstruction algorithms for Computed Tomography, based on principles of Filtered Back-Projection (FBP). Special attention is given to the problem of image reconstruction in Region Of Interest (ROI) from truncated projections. In the proposed linear reconstruction scheme the ramp filter of FBP is replaced with a statistically trained spatially-variant 2-D convolu...

2012
Sajad Jafari S. M. Reza Hashemi Golpayegani Amir H. Jafari

Chaotic behavior is a feature associated with complex and interacted systems. Many natural and unnatural systems in various branches of science (such as biology, economics, etc.) exhibit chaotic behavior and the study of chaotic systems and signals has progressed in the recent decades. [1] Chaotic time series have a significant role in identification of their generating systems. It has been cla...

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