Results 41 to 50 of about 15,576,713 (334)

Approximation properties relative to continuous scale space for hybrid discretisations of Gaussian derivative operators

Frontiers in Signal Processing
This paper presents an analysis of properties of two hybrid discretisation methods for Gaussian derivatives, based on convolutions with either the normalised sampled Gaussian kernel or the integrated Gaussian kernel followed by central differences.
Tony Lindeberg
doaj   +1 more source

Redshift space correlations and scale-dependent stochastic biasing of density peaks [PDF]

, 2010
We calculate the redshift space correlation function and the power spectrum of density peaks of a Gaussian random field. In the linear regime k < 0.1 h/Mpc, the redshift space power spectrum is P^s_{pk}(k,u) = exp(-f^2 s_{vel}^2 k^2 u^2) * [b_{pk}(k) +
A. Taruya, A. G. Doroshkevich, A. J. S. Hamilton, A. N. Taylor, A. S. Szalay, E. Regös, H. J. Mo, H. J. Mo, I. S. Gradshteyn, J. A. Peacock, J. A. Peacock, J. A. Peacock, J. A. Peacock, J. C. Jackson, N. Kaiser, P. Coles, P. Coles, P. B. Lilje, P. J. E. Peebles, R. K. Sheth, R. K. Sheth, Ravi K. Sheth, S. Cole, S. Cole, S. L. Lumsden, S. O. Rice, Vincent Desjacques, W. E. Ballinger, Y.-S. Song   +28 more
core   +1 more source

Fast Frequency Estimation by Zero Crossings of Differential Spline Wavelet Transform

EURASIP Journal on Advances in Signal Processing, 2005
Zero crossings or extrema of a wavelet transform constitute important signatures for signal analysis with the advantage of great simplicity. In this paper, we introduce a fast frequency-estimation method based on zero-crossing counting in the transform ...
Chen Jie, Wu Qiang, Castleman Kenneth R, Wang Yu-Ping   +3 more
doaj   +1 more source

Visual Saliency Based on Scale-Space Analysis in the Frequency Domain [PDF]

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013
We address the issue of visual saliency from three perspectives. First, we consider saliency detection as a frequency domain analysis problem. Second, we achieve this by employing the concept of nonsaliency.
Jian Li, M. Levine, X. An, Xin Xu, Hangen He   +4 more
semanticscholar   +1 more source

A parameterless scale-space approach to find meaningful modes in histograms - Application to image and spectrum segmentation [PDF]

Int. J. Wavelets Multiresolution Inf. Process., 2014
In this paper, we present an algorithm to automatically detect meaningful modes in a histogram. The proposed method is based on the behavior of local minima in a scale-space representation.
J. Gilles, K. Heal
semanticscholar   +1 more source

Scale Space Smoothing, Image Feature Extraction and Bessel Filters

, 2011
The Green function of Mumford-Shah functional in the absence of discontinuities is known to be a modified Bessel function of the second kind and zero degree. Such a Bessel function is regularized here and used as a filter for feature extraction.
Gunn, Steve, Mahmoodi, Sasan
core   +1 more source

Interpreting large-scale redshift-space distortion measurements [PDF]

, 2011
The simplest theory describing large-scale redshift-space distortions (RSD), based on linear theory and distant galaxies, depends on the growth of cosmological structure, suggesting that strong tests of General Relativity can be constructed from galaxy ...
A. Raccanelli, Abazajian, Alcock, Ballinger, Barrow, Bharadwaj, Cabré, Cabré, Carlson, Cole, Corder, Crocce, Crocce, Crocce, Dalal, Desjacques, Desjacques, Eisenstein, Eisenstein, Feldman, Feldman, Fisher, Fukugita, Gunn, Guzzo, Hamilton, Hamilton, Hawkins, Jackson, Jennings, Jing, Kaiser, Kashlinsky, Kazin, Kazin, L. Samushia, Landy, Laureijs, Lewis, Li, Linder, Macaulay, Matsubara, Matsubara, Matsubara, Meikson, Mo, Norberg, Nusser, Okamura, Okumura, Padmanabhan, Papai, Peacock, Percival, Percival, Press, Raccanelli, Reid, Reid, Ross, Samushia, Sanchez, Scoccimarro, Seljak, Simpson, Smith, Song, Szalay, Szapudi, Takada, Tang, Taruya, Taruya, Tegmark, Thomas, Tocchini-Valentini, W. J. Percival, Watkins, York, Zaroubi, Zehavi   +81 more
core   +2 more sources

The MedSupport Multilevel Intervention to Enhance Support for Pediatric Medication Adherence: Development and Feasibility Testing

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard, Hital Patel, Paula C. Vincent, Justine Kahn, Kira Bona, Thai Hoa Tran, Elisa M. Rodriguez, Kristopher Attwood, Kara M. Kelly   +8 more
wiley   +1 more source

Assessment of the impact of a personalised nutrition intervention in impaired glucose regulation over 26 weeks: a randomised controlled trial

Scientific Reports
Dietary interventions can reduce progression to type 2 diabetes mellitus (T2DM) in people with non-diabetic hyperglycaemia. In this study we aimed to determine the impact of a DNA-personalised nutrition intervention in people with non-diabetic ...
Maria Karvela, Caroline T. Golden, Nikeysha Bell, Stephanie Martin-Li, Judith Bedzo-Nutakor, Natalie Bosnic, Pierre DeBeaudrap, Sara de Mateo-Lopez, Ahmed Alajrami, Yun Qin, Maria Eze, Tsz-Kin Hon, Javier Simón-Sánchez, Rashmita Sahoo, Jonathan Pearson-Stuttard, Patrick Soon-Shiong, Christofer Toumazou, Nick Oliver   +17 more
doaj   +1 more source

INTEGRATING SCALE AND SPACE IN 3D CITY MODELS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
This paper presents the problem of the current separate treatment of levels of detail in city models. We propose a solution, detail the main principles, and present our initial results on the approach.
J. Stoter, H. Ledoux, M. Meijers, K. Arroyo Ohori   +3 more
doaj   +1 more source