Now showing items 1-10 of 25
Estimating crowd density with Minkowski fractal dimension
The estimation of the number of people in an area under surveillance is very important for the problem of crowd monitoring. When an area reaches an occupation level greater than the projected one, people's safety can be ...
Texture analysis using complex system models: fractal dimension, swarm systems and non-linear diffusion
(Sociedade Brasileira de Computação - SBCUniversidade Federal de São Paulo - UNIFESPInstituto Nacional de Pesquisas Espaciais - INPESão José dos Campos, 2016-10)
Texture is one of the primary visual attributes used to describe patterns found in nature. Several texture analysis methods have been used as powerful tools for real applications involving computer vision. However, existing ...
Plant species identification using multi-scale fractal dimension applied to images of adaxial surface epidermis
This paper presents the study of computational methods applied to histological texture analysis in order to identify plant species, a very difficult task due to the great similarity among some species and presence of ...
Aprendizado de máquina simbólico e técnicas fractais para caracterizar rejeição em biópsia miocárdica
This work combines symbolic machine learning and multiscale fractal techniques to generate models that characterize cellular rejection in myocardial biopsies and that can base a diagnosis support system. The models express ...
Improving multivariate data streams clustering.
(Procedia Computer Science, v. 80, p. 461-471, 2016., 2016)
Color fractal descriptors for adaxial epidermis texture classification
The leaves are an important plant organ and source of information for the traditional plant taxonomy. This study proposes a plant classification approach using the adaxial epidermis tissue, a specific cell layer that covers ...
Characterization of texture in image of skin lesions by support vector machine
Due to the increased incidence of skin cancer, computational methods based on intelligent approaches have been developed to aid dermatologists in the diagnosis of skin lesions. This paper proposes a method to classify ...
Combinando análise fractal e mineração de séries temporais para identificação de extremos climáticos regionais.
(In: CONGRESSO DA SOCIEDADE BRASILEIRA DE COMPUTAÇÃO, 31., 2011, Natal. Computação para todos: no caminho da evolução social: anais. Natal: UFRN, 2O11., 2011)
The Meaningful Fractal Fuzzy Dimension Applied to the Design of Self Organizing Maps
This paper presents the principal results of a detailed study about the use of the Meaningful Fractal Fuzzy Dimension measure in the problem in determining adequately the topological dimension of output space of a ...
Fractal character of the SAXS correlation volume in poly(ethylene glycol)/silica hybrid wet gels
Small-angle X-ray scattering (SAXS) was employed to study the nanostructural properties of poly(ethylene glycol)(PEG)/silica hybrid wet gels prepared from hydrolysis of tetraethoxysilane (TEOS) in mixtures with PEG/(PEG + ...