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Reference TypeConference Paper (Conference Proceedings)
Sitesibgrapi.sid.inpe.br
Identifier8JMKD3MGPBW34M/3JNHU48
Repositorysid.inpe.br/sibgrapi/2015/06.24.21.28
Last Update2015:06.24.21.28.53 (UTC) ocuadros@icmc.uso.br
Metadatasid.inpe.br/sibgrapi/2015/06.24.21.28.53
Metadata Last Update2020:02.19.02.14.04 (UTC) administrator
Citation KeyLinaresBoteRodrBati:2015:AdErMe
TitleAn Adjustable Error Measure for Image Segmentation Evaluation
FormatOn-line
Year2015
Access Date2021, Nov. 28
Number of Files1
Size497 KiB
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Author1 Linares, Oscar Cuadros
2 Botelho, Glenda
3 Rodrigues, Francisco
4 Batista Neto, João
Affiliation1 University of São Paulo
2 Universidade Federal do Tocantins
3 University of São Paulo
4 University of São Paulo
EditorPapa, João Paulo
Sander, Pedro Vieira
Marroquim, Ricardo Guerra
Farrell, Ryan
e-Mail Addressocuadros@icmc.uso.br
Conference NameConference on Graphics, Patterns and Images, 28 (SIBGRAPI)
Conference LocationSalvador
DateAug. 26-29, 2015
PublisherIEEE Computer Society
Publisher CityLos Alamitos
Book TitleProceedings
Tertiary TypeFull Paper
History (UTC)2015-06-24 21:28:53 :: ocuadros@icmc.uso.br -> administrator ::
2020-02-19 02:14:04 :: administrator -> :: 2015
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Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Keywordserror measure
metric
evaluation
image segmentation
AbstractDue to the subjective nature of the segmentation process, quantitative evaluation of image segmentation methods is still a difficult task. Humans perceive image objects in different ways. Consequently, human segmentations may come in different levels of refinement, ie, under- and over-segmentations. Popular segmentation error measures in the literature (Arbelaez and OCE) are supervised methods (also called empirical discrepancy methods), in which error is computed by comparing objects in segmentations with a reference (ground-truth) image produced by humans. Since reference images can be many, the key issue for a segmentation error measure is to be consistent in the presence of both under- and over-segmentation. In general, the term consistency refers to the ability of the error measure to be low, when comparing similar segmentations, or high, when faced with different segmentations, while capturing under- or over-segmentations. In this paper we propose a new object-based empirical discrepancy error measure, called Adjustable Object- based Measure (AOM). We introduce a penalty parameter which gives the method the ability to be more (or less) responsive in the presence of over-segmentation. Hence, we extend the notion of consistency so as to include the applications need in the process. Some applications require segmentation to be extremely accurate, hence under- or over-segmentation should be well penalised. Others, do not. By changing the penalty parameter, AOM can deliver more consistent results not only in reference to the under- or over-segmentation issue alone, but also according to the nature of the application. We compare our method with Arbelaez (used as standard measure in the benchmark of Berkeley Segmentation Image Dataset) and OCE. Our results show that AOM not only is more consistent in the presence of over-segmentation, but is also faster to compute. Unlike Arbelaez and OCE, AOM also satisfies the metric axiom of symmetry.
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