Results 21 to 30 of about 59,947 (259)

Riemannian mathematical morphology [PDF]

Pattern Recognition Letters, 2014
This paper introduces mathematical morphology operators for real-valued images whose support space is a Riemannian manifold. The starting point consists in replacing the Euclidean distance in the canonical quadratic structuring function by the Riemannian distance used for the adjoint dilation/erosion. We then extend the canonical case to a most general
Jesús Angulo, Santiago Velasco-Forero
openaire   +2 more sources

N-ary Mathematical Morphology [PDF]

Mathematical Morphology - Theory and Applications, 2015
Abstract Mathematical morphology on binary images can be fully described by set theory. However, it is not sufficient to formulate mathematical morphology for grey scale images. This type of images requires the introduction of the notion of partial order of grey levels, together with the definition of sup and inf operators.
Chevallier, Emmanuel, Chevallier, Augustin, Angulo, Jesus   +2 more
openaire   +3 more sources

Overlap Functions-Based Fuzzy Mathematical Morphological Operators and Their Applications in Image Edge Extraction

Fractal and Fractional, 2023
As special aggregation functions, overlap functions have been widely used in the soft computing field. In this work, with the aid of overlap functions, two new groups of fuzzy mathematical morphology (FMM) operators were proposed and applied to image ...
Xiaohong Zhang, Mengyuan Li, Hui Liu
doaj   +1 more source

On Nonlocal Mathematical Morphology [PDF]

, 2013
In this paper, nonlocal mathematical morphology operators are introduced as a natural extension of nonlocal-means in the max-plus algebra. Firstly, we show that nonlocal morphology is a particular case of adaptive morphology. Secondly, we present the necessary properties to have algebraic properties on the associated pair of transformations.
Santiago Velasco-Forero, Jesús Angulo
openaire   +1 more source

Nonlocal and multivariate mathematical morphology [PDF]

2012 19th IEEE International Conference on Image Processing, 2012
The generalization of mathematical morphology to multivariate images is addressed in this paper. The proposed approach is fully unsupervised and consists in constructing a complete lattice from an image as a rank transformation together with a learned ordering of vectors. This unsupervised ordering of vectors relies on three steps: dictionary learning,
Olivier Lezoray, Abderrahim Elmoataz
openaire   +2 more sources

Aspects of mathematical morphology [PDF]

, 2003
In this paper we review the basic concepts of integral-geometry-based morphological image analysis. This approach yields an objective, numerical characterization of two- and three-dimensional patterns in terms of geometrical and topological descriptors called Minkowski functionals.
Michielsen, K.F L, de Raedt, H.A., de Hosson, J.T.M.   +2 more
openaire   +2 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Composite morphological structural element in the edge detecting

Journal of Education, Health and Sport, 2017
Rajs Arkadiusz, Aleksiewicz Mariusz, Goździewska-Nowicka Agnieszka, Parczyk Krystyna. Composite morphological structural element in the edge detecting. Journal of Education, Health and Sport. 2016;6(11):299-304. eISSN 2391-8306.
Arkadiusz Rajs, Mariusz Aleksiewicz, Agnieszka Goździewska-Nowicka, Krystyna Parczyk   +3 more
doaj   +3 more sources

What Happens in the City When Long-Term Urban Expansion and (Un)Sustainable Fringe Development Occur: The Case Study of Rome

ISPRS International Journal of Geo-Information, 2021
This study investigates long-term landscape transformations (1949–2016) in urban Rome, Central Italy, through a spatial distribution of seven metrics (core, islet, perforation, edge, loop, bridge, branch) derived from a Morphological Spatial Pattern ...
Samaneh Sadat Nickayin, Luca Salvati, Rosa Coluzzi, Maria Lanfredi, Rares Halbac-Cotoara-Zamfir, Rosanna Salvia, Giovanni Quaranta, Ahmed Alhuseen, Luisa Gaburova   +8 more
doaj   +1 more source

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source