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Title: Structured learning of tree potentials in CRF for image segmentation
Authors: Liu, Fayao
Lin, Guosheng
Qiao, Ruizhi
Shen, Chunhua
Keywords: Engineering::Computer science and engineering
Decision Trees
Conditional Random Fields
Issue Date: 2017
Source: Liu, F., Lin, G., Qiao, R., & Shen, C. (2018). Structured learning of tree potentials in CRF for image segmentation. IEEE Transactions on Neural Networks and Learning Systems, 29(6), 2631-2637. doi:10.1109/TNNLS.2017.2690453
Series/Report no.: IEEE Transactions on Neural Networks and Learning Systems
Abstract: We propose a new approach to image segmentation, which exploits the advantages of both conditional random fields (CRFs) and decision trees. In the literature, the potential functions of CRFs are mostly defined as a linear combination of some predefined parametric models, and then, methods, such as structured support vector machines, are applied to learn those linear coefficients. We instead formulate the unary and pairwise potentials as nonparametric forests-ensembles of decision trees, and learn the ensemble parameters and the trees in a unified optimization problem within the large-margin framework. In this fashion, we easily achieve nonlinear learning of potential functions on both unary and pairwise terms in CRFs. Moreover, we learn classwise decision trees for each object that appears in the image. Experimental results on several public segmentation data sets demonstrate the power of the learned nonlinear nonparametric potentials.
ISSN: 2162-237X
DOI: 10.1109/TNNLS.2017.2690453
Rights: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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