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		<doi>10.1109/SIBGRAPI.2019.00022</doi>
		<citationkey>BarcelosFNKPCPG:2019:ExHiSi</citationkey>
		<title>Exploring hierarchy simplification for non-significant region removal</title>
		<format>On-line</format>
		<year>2019</year>
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		<author>Barcelos, Isabela Borlido,</author>
		<author>Fonseca, Gabriel Barbosa da,</author>
		<author>Najman, Laurent,</author>
		<author>Kenmochi, Yukiko,</author>
		<author>Perret, Benjamin,</author>
		<author>Cousty, Jean,</author>
		<author>Patrocínio Jr, Zenilton Kleber Gonçalves do,</author>
		<author>Guimarães, Silvio Jamil Ferzoli,</author>
		<affiliation>Audio-Visual Processing Laboratory (VIPLAB), Pontifical Catholic University of Minas Gerais, Brazil, 31980–110</affiliation>
		<affiliation>Audio-Visual Processing Laboratory (VIPLAB), Pontifical Catholic University of Minas Gerais, Brazil, 31980–110</affiliation>
		<affiliation>Université Paris-Est, LIGM UMR 8049, UPEMLVESIEE Paris, ENPC, CNRS, F-93162 Noisy-le-Grand France</affiliation>
		<affiliation>Université Paris-Est, LIGM UMR 8049, UPEMLVESIEE Paris, ENPC, CNRS, F-93162 Noisy-le-Grand France</affiliation>
		<affiliation>Université Paris-Est, LIGM UMR 8049, UPEMLVESIEE Paris, ENPC, CNRS, F-93162 Noisy-le-Grand France</affiliation>
		<affiliation>Université Paris-Est, LIGM UMR 8049, UPEMLVESIEE Paris, ENPC, CNRS, F-93162 Noisy-le-Grand France</affiliation>
		<affiliation>Audio-Visual Processing Laboratory (VIPLAB), Pontifical Catholic University of Minas Gerais, Brazil, 31980–110</affiliation>
		<affiliation>Audio-Visual Processing Laboratory (VIPLAB), Pontifical Catholic University of Minas Gerais, Brazil, 31980–110</affiliation>
		<editor>Oliveira, Luciano Rebouças de,</editor>
		<editor>Sarder, Pinaki,</editor>
		<editor>Lage, Marcos,</editor>
		<editor>Sadlo, Filip,</editor>
		<e-mailaddress>gbrl12@gmail.com</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 32 (SIBGRAPI)</conferencename>
		<conferencelocation>Rio de Janeiro, RJ, Brazil</conferencelocation>
		<date>28-31 Oct. 2019</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
		<transferableflag>1</transferableflag>
		<versiontype>finaldraft</versiontype>
		<keywords>Hierarchical image segmentation, hiearachy simplification, non-significant region removal.</keywords>
		<abstract>Image segmentation is a classic subject in the field of digital image processing, and it can be used to solve a large variety of problems or serve as preprocessing for other methods of image analysis. Hierarchical image segmentation methods provide a multiscale representation, therefore they produce a nested set of image segmentations in which a result at a given level can be produced by merging regions of the segmentation at its previous level. However, a hierarchical representation may produce small components at its coarser levels, leading to oversegmentations on such scales. To solve this problem, we explore strategies to simplify  hierarchies in order to remove non-significant regions, in terms of area, while trying to preserve the hierarchical structure. We evaluate the proposed simplification strategies with different hierarchical segmentation methods on the Pascal Context dataset by using precision-recall measures and fragmentation curves, along with a qualitative assessment showing that the simplification of hierarchies can lead to visually better image segmentations.</abstract>
		<language>en</language>
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