Results 21 to 30 of about 618 (108)

Fractal descriptors based on the probability dimension: a texture analysis and classification approach [PDF]

, 2014
In this work, we propose a novel technique for obtaining descriptors of gray-level texture images. The descriptors are provided by applying a multiscale transform to the fractal dimension of the image estimated through the probability (Voss) method.
Bruno, Odemir Martinez, Florindo, João Batista   +1 more
core   +2 more sources

Fractal Dimension as a measure of the scale of Homogeneity [PDF]

, 2010
In the multi-fractal analysis of large scale matter distribution, the scale of transition to homogeneity is defined as the scale above which the fractal dimension of underlying point distribution is equal to the ambient dimension of the space in which ...
Amendola, Angulo, Bagla, Bagla, Bagla, Bagla, Bagla, Barabási, Bernstein, Bharadwaj, Bharadwaj, Bond, Borgani, Broadhurst, Cohn, Colless, Einasto, Einasto, Einasto, Einstein, Eisenstein, Falconer, Faucher-Giguère, Feldman, Giavalisco, Hogg, Huchra, Huchra, J. S. Bagla, Jaswant K. Yadav, Jones, Kaiser, Kazin, Khandai, Komatsu, Le Fèvre, Lilly, Mandelbrot, Martinez, Martínez, Nishikanta Khandai, Peebles, Sarkar, Scoville, Seljak, Shectman, Smith, Smith, Springel, Sylos Labini, Sylos Labini, Sánchez, Yadav, York   +53 more
core   +1 more source

Fractal characteristics of May-Grünwald-Giemsa stained chromatin are independent prognostic factors for survival in multiple myeloma.

PLoS ONE, 2011
BackgroundThe use of computerized image analysis for the study of nuclear texture features has provided important prognostic information for several neoplasias.
Daniela P Ferro, Monica A Falconi, Randall L Adam, Manoela M Ortega, Carmen P Lima, Carmino A de Souza, Irene Lorand-Metze, Konradin Metze   +7 more
doaj   +1 more source

Severi-Bouligand tangents, Frenet frames and Riesz spaces [PDF]

, 2014
It was recently proved that a compact set $X\subseteq \mathbb R^2$ has an outgoing Severi-Bouligand tangent vector $u\not=0$ at $x\in X$ iff some principal ideal of the Riesz space $\mathcal R(X)$ of piecewise linear functions on $X$ is not an ...
Cabrer, Leonardo Manuel, Mundici, Daniele   +1 more
core   +3 more sources

A Semi‐Automated Usability Evaluation Framework for Interactive Image Segmentation Systems

International Journal of Biomedical Imaging, Volume 2019, Issue 1, 2019., 2019
For complex segmentation tasks, the achievable accuracy of fully automated systems is inherently limited. Specifically, when a precise segmentation result is desired for a small amount of given data sets, semi‐automatic methods exhibit a clear benefit for the user. The optimization of human computer interaction (HCI) is an essential part of interactive
Mario Amrehn, Stefan Steidl, Reinier Kortekaas, Maddalena Strumia, Markus Weingarten, Markus Kowarschik, Andreas Maier, Anne Clough   +7 more
wiley   +1 more source

The Fractal Nature of Planetary Landforms and Implications to Geologic Mapping

Earth and Space Science, Volume 5, Issue 5, Page 211-220, May 2018., 2018
Abstract The primary product of planetary geologic and geomorphologic mapping is a group of lines and polygons that parameterize planetary surfaces and landforms. Many different research fields use those shapes to conduct their own analyses, and some of those analyses require measurement of the shape's perimeter or line length, sometimes relative to a ...
Stuart J. Robbins
wiley   +1 more source

A holistic approach to determine tree structural complexity based on laser scanning data and fractal analysis

Ecology and Evolution, Volume 8, Issue 1, Page 128-134, January 2018., 2018
Based on three‐dimensional point clouds from laser scanning, a newly developed holistic approach is presented that enables to calculate the box dimension as a measure of structural complexity of individual trees using fractal analysis. It was found that the box dimension of trees is significantly different among the tested species, among trees ...
Dominik Seidel
wiley   +1 more source

Multiscale Fractal Descriptors Applied to Nanoscale Images

, 2012
This work proposes the application of fractal descriptors to the analysis of nanoscale materials under different experimental conditions. We obtain descriptors for images from the sample applying a multiscale transform to the calculation of fractal ...
Bruno, Odemir M., Florindo, João B., Pereira, Ernesto C., Sikora, Mariana S.   +3 more
core   +1 more source

Study on the Fractal Dimension and Growth Time of the Electrical Treeing Degradation at Different Temperature and Moisture

Advances in Materials Science and Engineering, Volume 2018, Issue 1, 2018., 2018
The paper aims to understand how the fractal dimension and growth time of electrical trees change with temperature and moisture. The fractal dimension of final electrical trees was estimated using 2‐D box‐counting method. Four groups of electrical trees were grown at variable moisture and temperature.
Youping Fan, Dai Zhang, Jingjiao Li, Federica Bondioli   +3 more
wiley   +1 more source

Invariance of the normalized Minkowski content with respect to the ambient space

, 2012
It is easy to show that the lower and the upper box dimensions of a bounded set in Euclidean space are invariant with respect to the ambient space. In this article we show that the Minkowski content of a Minkowski measurable set is also invariant with ...
Boros, Elezović, Falconer, Falconer, Federer, Krantz, Lapidus, Maja Resman, Mardešić, Mattila, Mendivil, Palis, Resman, Stachó, Tricot, Van Frankenhuysen, Žubrinić, Žubrinić, Županović   +18 more
core   +1 more source