Results 11 to 20 of about 730,204 (345)

IMAGE SHARPENING WITH BLUR MAP ESTIMATION USING CONVOLUTIONAL NEURAL NETWORK [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
We propose a method for choosing optimal values of the parameters of image sharpening algorithm for out-of-focus blur based on grid warping approach. The idea of the considered sharpening algorithm is to move pixels from the edge neighborhood towards the
A. Nasonov, A. Krylov, D. Lyukov
doaj   +1 more source

Modern Mathematics in Biomedical Imaging [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2011
Over the past decades, modern mathematics is playing an increasingly important role in the development of biomedical imaging, yielding groundbreaking ideas and powerful tools for clinical and preclinical applications. Nevertheless, there are not only growing obstacles between applied mathematicians and imaging engineers to communicate more effectively ...
Yangbo Ye   +3 more
openaire   +3 more sources

Study of Two Families of Generalized Yager’s Implications for Describing the Structure of Generalized (h,e)-Implications

open access: yesMathematics, 2021
In this study, we analyze the family of generalized (h,e)-implications. We determine when this family fulfills some of the main additional properties of fuzzy implication functions and we obtain a representation theorem that describes the structure of a ...
Raquel Fernandez-Peralta   +2 more
doaj   +1 more source

Mathematical Methods in Biomedical Imaging [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2013
Biomedical imaging is a rapidly growing field to provide a state-of-the-art tool for preclinical biomedical research and clinical applications, in view of its ability to noninvasively reveal subtle structural variations of biological tissues and visualize in vivo physiological and pathological processes at the cellular and molecular levels ...
Cong, Wenxiang   +2 more
openaire   +2 more sources

The set of all the possible compromises of a multi-level multi-objective linear programming problem

open access: yesCroatian Operational Research Review, 2022
In this paper, a new approach is developed to solve multi-level multi-objective linear programming problems (ML-MOLPP), by providing the set of all the compromises without taking into account the hierarchy of the problem.
Mustapha Kaci, Sonia Radjef
doaj   +1 more source

On surface completion and image inpainting by biharmonic functions: Numerical aspects [PDF]

open access: yes, 2018
Numerical experiments with smooth surface extension and image inpainting using harmonic and biharmonic functions are carried out. The boundary data used for constructing biharmonic functions are the values of the Laplacian and normal derivatives of the ...
Damelin, S. B., Hoang, N. S.
core   +3 more sources

Brain Relatively Inert Network: Taking Adult Attention Deficit Hyperactivity Disorder as an Example

open access: yesFrontiers in Neuroscience, 2021
Resting-state functional MRI (rs-fMRI) has been increasingly applied in the research of brain cognitive science and psychiatric diseases. However, previous studies only focused on specific activation areas of the brain, and there are few studies on the ...
Hua Zhang   +5 more
doaj   +1 more source

Concept image and concept definition in mathematics with particular reference to limits and continuity [PDF]

open access: yes, 1981
The concept image consists of all the cognitive structure in the individual's mind that is associated with a given concept. This may not be globally coherent and may have aspects which are quite different from the formal concept definition.
D. O. Tall   +3 more
core   +1 more source

A robust algorithm for optic disc segmentation and fovea detection in retinal fundus images

open access: yesCurrent Directions in Biomedical Engineering, 2017
Accurate optic disc (OD) segmentation and fovea detection in retinal fundus images are crucial for diagnosis in ophthalmology. We propose a robust and broadly applicable algorithm for automated, robust, reliable and consistent fovea detection based on OD
Rust Caterina   +3 more
doaj   +1 more source

Two-Dimensional Fuzzy Spatial Relations: A New Way of Computing and Representation

open access: yesAdvances in Fuzzy Systems, 2012
Fuzziness is found everywhere, in modeling spatial relations, fuzziness is found at object level as well as in relation semantics. Commonly, fuzzy topological relations are computed between fuzzy objects. Fuzziness in relation semantics is represented by
Nadeem Salamat, El-hadi Zahzah
doaj   +1 more source

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