Análise de formas planas em imagens digitais

Given the widespread use of computers, the visual pattern recognition task has been automated in order to address the huge amount of available digital images. Many applications use image processing techniques as well as feature extraction and visual pattern recognition algorithms in order to identif...

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Bibliographic Details
Authors: Souza, Gustavo Botelho de [UNESP], Marana, Aparecido Nilceu [UNESP]
Format: article
Status:Published version
Publication Date:2013
Country:Brasil
Institution:Universidade Estadual Paulista (UNESP)
Repository:Repositório Institucional da UNESP
Language:Portuguese
OAI Identifier:oai:repositorio.unesp.br:11449/135126
Online Access:http://www.fmpfm.edu.br/intercienciaesociedade/colecao/online/vol2_n1_on_line.html
http://hdl.handle.net/11449/135126
Access Level:Open access
Keyword:Shape analysis
Image analysis
Hough transform
Análise de formas
Análise de imagens
Transformada de Hough
Description
Summary:Given the widespread use of computers, the visual pattern recognition task has been automated in order to address the huge amount of available digital images. Many applications use image processing techniques as well as feature extraction and visual pattern recognition algorithms in order to identify people, to make the disease diagnosis process easier, to classify objects, etc. based on digital images. Among the features that can be extracted and analyzed from images is the shape of objects or regions. In some cases, shape is the unique feature that can be extracted with a relatively high accuracy from the image. In this work we present some of most important shape analysis methods and compare their performance when applied on three well-known shape image databases. Finally, we propose the development of a new shape descriptor based on the Hough Transform.