Results 51 to 60 of about 18,020 (238)

Color image segmentation using a spatial k-means clustering algorithm [PDF]

, 2006
This paper details the implementation of a new adaptive technique for color-texture segmentation that is a generalization of the standard K-Means algorithm. The standard K-Means algorithm produces accurate segmentation results only when applied to images
Ilea, Dana E., Whelan, Paul F.
core  

Long‐Term Follow‐Up of Chemotherapy‐Associated Biological Aging in Women With Early Breast Cancer

Aging and Cancer, EarlyView.
Women threated with adjuvant chemotherapy for early breast cancer have sustained long‐term increase in p16INK4a,, a robust marker of cell senescence, suggesting a chemotherapy‐associated age acceleration. p16INK4a as well as other biomarkers may identify patients at greatest risk for senescence‐related diseases of aging.
Hyman B. Muss, Alexis C. Wardell, Allison M. Deal, Kirsten A. Nyrop, Allison Ross, Yara G. Abdou, Jeffrey D. Aldrich, Lisa A. Cary, E. Claire Dees, Katherine E. Reeder‐Hayes, Emily M. Ray, Natalia Mitin, Denis Tsygankov   +12 more
wiley   +1 more source

Global smoothness preservation with second order modulus of smoothness

Mathematica Slovaca, 2013
Abstract We establish the global smoothness preservation of a function f by the sequence of linear positive operators. Our estimate is in terms of the second order Ditzian-Totik modulus of smoothness. Application is given to the Bernstein operator.
openaire   +1 more source

Globally Convergent Edge-Preserving Reconstruction With Contour-Line Smoothing

, 2011
The standard approach to image reconstruction is to stabilize the problem by including an edge-preserving roughness penalty in addition to faithfulness to the data. However, this methodology produces noisy object boundaries and creates a staircase effect.
Robini, M, Viverge, P.-J., Zhu, y M, Luo, J H   +3 more
openaire   +3 more sources

Best constants in preservation of global smoothness for Szász–Mirakyan operators

Journal of Mathematical Analysis and Applications, 2008
For \(t>0\), the Szász-Mirakyan operator \(S_{t}\) is defined by \[ S_{t}f(x):=e^{-xt}\,\sum_{k=0}^{\infty}f\Big(\frac{k}{t}\Big)\frac{(tx)^{k}}{k!}, \quad x\geq 0, \] where \(f\) is any real function defined on \([0,\,\infty)\) such that \(S_{t}| f| (x)0, \quad C_{t}:=\sup_{\delta>0}C_{t}(\delta), \] where \[ w(f;\delta):=\sup\big\{| f(x)-f(y)| \,:x,y\
Adell, José A., Lekuona, Alberto
openaire   +2 more sources

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

IE-TV: Structural Information Enhanced 3-D Weighted Correlated Total Variation for Hyperspectral Image Denoising

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Hyperspectral image (HSI) denoising remains challenging due to the difficulty in recovering the complex structure in HSIs under the corruption of mixed-noise. Existing methods face two key limitations: 1) they ignore the underlying structural information,
Ke Yang, Long Yu, Fan Li, Jia Chen, Zhaozhao Zeng, Jun Li, Antonio Plaza   +6 more
doaj   +1 more source

Implicit High-Order Flux Reconstruction Solver for High-Speed Compressible Flows

, 2018
The present paper addresses the development and implementation of the first high-order Flux Reconstruction (FR) solver for high-speed flows within the open-source COOLFluiD (Computational Object-Oriented Libraries for Fluid Dynamics) platform.
Lani, Andrea, Vandenhoeck, Ray
core   +1 more source

Variably Protease‐Sensitive Prionopathy: Two New Cases With Motor Neuron‐Dementia Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We describe two patients with variably protease‐sensitive prionopathy (VPSPr) who developed progressive upper motor neuron symptoms, insomnia, behavioral and cognitive decline, compatible with primary lateral sclerosis associated with frontotemporal dementia (FTD).
María Elena Erro, María Victoria Zelaya, Hasier Eraña, Javier Sánchez Ruiz de Gordoa, Fermín García‐Amigot, Anika Simonovska‐Serra, María Cristina Caballero, Isidre Ferrer, Ellen Gelpi, Ivonne Jericó, Joaquín Castilla   +10 more
wiley   +1 more source

Multi-frame scene-flow estimation using a patch model and smooth motion prior [PDF]

, 2010
This paper addresses the problem of estimating the dense 3D motion of a scene over several frames using a set of calibrated cameras. Most current 3D motion estimation techniques are limited to estimating the motion over a single frame, unless a strong ...
Bhalerao, Abhir, Popham, T. J., Wilson, Roland   +2 more
core   +1 more source