A meta-learning approach for selecting image segmentation algorithm

•Automated selection of image segmentation algorithms.•Computational cost reduction in image segmentation tasks.•Meta-learning outperformed any single algorithm explored over the whole dataset.•Machine Learning and Gradient-based image segmentation algorithms were studied.•Experiments were conducted...

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Vydané v:Pattern recognition letters Ročník 128; s. 480 - 487
Hlavní autori: Aguiar, Gabriel Jonas, Mantovani, Rafael Gomes, Mastelini, Saulo M., de Carvalho, André C.P.F.L., Campos, Gabriel F.C., Junior, Sylvio Barbon
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Amsterdam Elsevier B.V 01.12.2019
Elsevier Science Ltd
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ISSN:0167-8655, 1872-7344
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Shrnutí:•Automated selection of image segmentation algorithms.•Computational cost reduction in image segmentation tasks.•Meta-learning outperformed any single algorithm explored over the whole dataset.•Machine Learning and Gradient-based image segmentation algorithms were studied.•Experiments were conducted over a widely known image dataset with 2100 examples. [Display omitted] Image segmentation is a key issue in image processing. New image segmentation algorithms have been proposed in the last years. However, there is no optimal algorithm for every image processing task. The selection of the most suitable algorithm usually occurs by testing every possible algorithm or using knowledge from previous problems. These processes can have a high computational cost. Meta-learning has been successfully used in the machine learning research community for the recommendation of the most suitable machine learning algorithm for a new dataset. We believe that meta-learning can also be useful to select the most suitable image segmentation algorithm. This hypothesis is investigated in this paper. For such, we perform experiments with eight segmentation algorithms from two approaches using a segmentation benchmark of 300 images and 2100 augmented images. The experimental results showed that meta-learning can recommend the most suitable segmentation algorithm with more than 80% of accuracy for one group of algorithms and with 69% for the other group, overcoming the baselines used regarding recommendation and segmentation performance.
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content type line 14
ISSN:0167-8655
1872-7344
DOI:10.1016/j.patrec.2019.10.018