Results 231 to 240 of about 401,434 (267)

The use of F-transform for image fusion algorithms

2010 International Conference of Soft Computing and Pattern Recognition, 2010
We show that on the basis of F-transform, the problem of reconstruction of corrupted images can be solved. The proposed technique is called image fusion. A simple linear algorithm of image fusion, based on F-transform, is proposed and justified. A measure of degradation of an image is proposed as well.
Irina Perfilieva, Martina Danková, Petra Hodáková, Marek Vajgl   +3 more
openaire   +1 more source

Fuzzification via F-transform [PDF]

, 2013
In this paper we show how a fuzzification process can benefit of the F-transform and possibility distributions.
Luciano Stefanini, Maria Letizia Guerra
openaire  

Time series analysis by discrete F-transform

International Conference on Fuzzy Systems, 2010
The aim of this contribution is to show that the theory of F-transform can be successfully used in analysis and forecasting of time series. We propose relaxed constraints on a fuzzy partition as well as a matrix form of the F-transform for fast computation.
Irina Perfilieva, Nadezhda G. Yarushkina, Tatiana Afanasieva   +2 more
openaire   +1 more source

Differentiation by the F-transform and application to edge detection

Fuzzy Sets and Systems, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Irina Perfilieva, Petra Hodáková, Petr Hurtík   +2 more
openaire   +1 more source

Modified F-transform Based on B-splines

2018
The aim of this paper is to improve the F-transform technique based on B-splines. A modification of the F-transform of higher degree with respect to fuzzy partitions based on B-splines is done to extend the good approximation properties from the interval where the Ruspini condition is fulfilled to the whole interval under consideration.
Martins Kokainis, Svetlana V. Asmuss
openaire   +1 more source

Discrete multivariate F-transform of higher degree

2015 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), 2015
In this paper, we reformulate the multivariate fuzzy transform (Fm-transform) of higher degree proposed originally for an approximation of continuous functions to the discrete case. We introduce the Fm-transform components as multivariate polynomials using the matrix algebra, the inverse Fm-transform is established to obtain a continuous function.
Michal Holcapek, Tomás Tichý
openaire   +1 more source

Convolutional Neural Networks with the F-transform Kernels

2017
We propose a new convolutional neural network – the FTNet and explain its theoretical background referring to the theory of a higher degree F-transform. The FTNet is parametrized by kernel sizes, on/off activation of weights learning, the choice of strides or pooling, etc. It is trained on the database MNIST and tested on handwritten inputs.
Vojtech Molek, Irina Perfilieva
openaire   +1 more source

F-transform with parametric generalized fuzzy partitions

Fuzzy Sets and Systems, 2011
The fuzzy transform was introduced by \textit{I. Perfilieva} [Fuzzy Sets Syst. 157, No. 8, 993--1023 (2006; Zbl 1092.41022)] and having some interesting properties that allow its use in the curve fitting and smoothing data. In the present study the author suggests an extension of the fuzzy transform in order to control and improve the smoothing effect.
openaire   +3 more sources

Any F-Transform Is Defined by a Powerset Theory

2019
Relationships between powerset theories and F-transforms are investigated. Both these methods represent strong tools in fuzzy sets theory and applications. Although both methods deal with similar objects, both these methods use different tools and, so far, the relationship between the two methods has not been investigated.
openaire   +1 more source

Thermodynamical aspect of G-F transformations of actin

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1969
Abstract 1. Thermodynamic analyses were made concerning the polymerization of G-actin to F-actin. The time courses of polymerization were very similar over a wide range of solvent conditions; polymerization curves obtained under varied conditions could be superposed by translation parallel to the logarithmic time axis. 2. The activation enthalpy for
openaire   +2 more sources