Results 141 to 150 of about 12,265 (182)

Testing for nematode–granulometry relationships

Marine Biodiversity, 2014
The majority of studies have advocated that diversity of marine nematodes increases with increasing sediment grain size, although the opposite trend has also been suggested. The controversy is partially caused by not taking into account the effect of density on patterns of diversity and by analyzing datasets from different environments.
G. Fonseca, T. F. Maria, N. Kandratavicius, V. Venekey, P. F. Gheller, F. Gallucci   +5 more
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Periodic Lines and their Application to Granulometries

1996
In this paper we introduce the notion of periodic lines. In contrast to other types of digital lines such as Bresenham lines, periodic lines can be used to generate a wide range of granulometric functions via structural decomposition.
Ronald Jones, Pierre Soille
openaire   +2 more sources

A Granulometry Based Descriptor for Object Categorization

2013
The progress in the area of object recognition in the last decade is impressive. The literature reports new descriptors, new strategies, new ways to combine descriptors and classifiers and new problems in a so fast pace that it is hard to follow the whole area. A recent problem in the area is the fine-grained categorization.
Arnaldo Câmara Lara, Roberto Hirata Jr.
openaire   +1 more source

Fast Grayscale Granulometry Algorithms

1994
Granulometries constitute an extremely useful set of morphological operators, applicable to a variety of image analysis tasks. Traditional granulometry algorithms involve sequences of openings or closings of increasing size, and are therefore very slow on non-dedicated hardware.
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Granulometries and pattern spectra for radar signals

Signal Processing, 2006
Granulometries and pattern spectra are morphological tools used to obtain size distributions in images. This paper presents the application of these techniques to radar signals. It uses a new approach which is more appropriate for RF signals than the classical approach. It uses complex openings, closings and power measurements instead of the usual gray-
openaire   +2 more sources

Granulometry of Mangrove Sediments

2014
The grain size analyses of estuarine sediments give an idea of the depositional environment in the estuaries. Values of graphic mean size, median, standard deviation, kurtosis and skewness are determined from the cumulative curves drawn by plotting size values.
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Magnetic Granulometry and Super-Paramagnetism

Journal of Applied Physics, 1956
The magnetic technique of particle size measurement based on the work of Elmore consists of a comparison of a modified Langevin curve with the observed magnetization curve for an appropriate system of ferromagnetic particles. The average magnetic moment per particle is obtained from this analysis, and the average particle size is thus determined.
C. P. Bean, I. S. Jacobs
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Periodic lines: Definition, cascades, and application to granulometries

Pattern Recognition Letters, 1996
In this paper we introduce the notion of periodic lines. In contrast to other types of lines such as Bresenham lines, periodic lines can be used to generate a wide range of granulometric functions via structural decomposition.
Ronald Jones, Pierre Soille
openaire   +2 more sources

Using granulometries in processing images of malarial blood

ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2002
The mathematical morphology technique, granulometry, is used to create the pattern spectrum of a malarial blood slide image. From this, the red blood cell size can be evaluated, making subsequent processing scale-invariant.
Dempster, A. G., DI RUBERTO, CECILIA
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[Granulometry and fractal dimensions].

Ceska a Slovenska farmacie : casopis Ceske farmaceuticke spolecnosti a Slovenske farmaceuticke spolecnosti, 2004
The fractal character of exponential particle size distribution makes it possible to use fractal dimension for the evaluation of the results of granulometric analysis. The conditions of sedimentation analysis of talc in aqueous solution were optimized by adding nonionogenic tenside and deflocculation electrolyte.
openaire   +1 more source