Results 31 to 40 of about 1,136,335 (337)

Interpolation and scattered data fitting on manifolds using projected Powell–Sabin splines [PDF]

open access: yes, 2008
We present methods for either interpolating data or for fitting scattered data on a two-dimensional smooth manifold. The methods are based on a local bivariate Powell-Sabin interpolation scheme, and make use of a family of charts {(Uξ , ξ)}ξ∈ satisfying ...
Davydov, O., Schumaker, L.L.
core   +1 more source

GPU-Accelerated Visualization of Scattered Point Data

open access: yesIEEE Access, 2013
As data sets continue to grow in size, visualization has become a vitally important tool for extracting meaningful knowledge. Scattered point data, which are unordered sets of point coordinates with associated measured values, arise in many contexts ...
Thomas L. Falch   +3 more
doaj   +1 more source

Image reconstruction from scattered Radon data by weighted positive definite kernel functions [PDF]

open access: yes, 2018
We propose a novel kernel-based method for image reconstruction from scattered Radon data. To this end, we employ generalized Hermite–Birkhoff interpolation by positive definite kernel functions. For radial kernels, however, a straightforward application
De Marchi, S., Iske, A., Santin, G.
core   +1 more source

Enabling e-Research in combustion research community [PDF]

open access: yes, 2006
This paper proposes an application of the Collaborative e-Science Architecture (CeSA) to enable e-Research in combustion research community. A major problem of the community is that data required for constructing modelling might already exist but ...
Dew, P.M.   +3 more
core   +1 more source

Scattered Data Interpolation Using Rational Quartic Triangular Patches With Three Parameters

open access: yesIEEE Access, 2020
This paper discusses the construction of scattered data interpolation scheme based on rational quartic triangular patches with C1 continuity. The C1 sufficient condition is derived on each adjacent triangle. We employ rational corrected scheme comprising
Nur Nabilah Che Draman   +2 more
doaj   +1 more source

An Efficient Density-Based Local Outlier Detection Approach for Scattered Data

open access: yesIEEE Access, 2019
After the local outlier factor was first proposed, there is a large family of local outlier detection approaches derived from it. Since the existing approaches only focus on the extent of overall separation between an object and its neighbors, and ignore
Shubin Su   +6 more
doaj   +1 more source

Progressive scattered data filtering

open access: yesJournal of Computational and Applied Mathematics, 2003
The author discusses the construction of a sequence of subsets of decreasing sizes such that their converting radii are small. A method for progressive data reduction, called ``scattered data filtering'', is proposed and analyzed.
openaire   +2 more sources

Scattered Data Processing Approach Based on Optical Facial Motion Capture

open access: yesApplied Bionics and Biomechanics, 2013
In recent years, animation reconstruction of facial expressions has become a popular research field in computer science and motion capture-based facial expression reconstruction is now emerging in this field.
Qiang Zhang   +2 more
doaj   +1 more source

An analytical model for turbulence scattered rays in the shadow zone for outdoor sound propagation calculation [PDF]

open access: yes, 2009
In outdoor sound propagation, an inherent problem of the ray tracing method is its inability to determine the sound pressure level in the shadow zone, where geometrical rays do not penetrate.
Lam, YW
core   +1 more source

A near-surface seismic scattered wave separation method

open access: yesPetroleum Exploration and Development, 2014
Considering that near-surface scattered waves could not be suppressed by conventional denoise method, this paper analyzes the characteristics of scattered waves and achieves the near-surface scattered wave separation by the seismic interferometry theory.
Jixiang XU, B F McLean, Xuejuan SONG
doaj   +1 more source

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