Hierarchical non-parametric Markov random field for image segmentation
Hierarchical non-parametric Markov random field for image segmentation
复制标题
用于图像分割的分层非参数马尔可夫随机场
DOI:
10.1049/iet-cvi.2016.0429
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发表时间:
2017-08
影响因子:
1.7
通讯作者:
J. Zhao
中科院分区:
文献类型:
--
作者:
X. Wang;J. Zhao
Markov random fields (MRFs) are prominent in modelling image to handle image processing problems. However, they confront the bottleneck of model selection in further improving the performance. That is difficult to decide how many objects in an image automatically. Motivated by Bayesian non-parametric (BN) models, a layered BN MRF is proposed. The proposed model is hierarchical: the lower level is a random-field like model, while the higher level is a Chinese restaurant process (CRP). The clustering procedure can be formulated briefly as follows. The input data is first clustered with the lower level MRF to form a set of components. Then the higher level CRP is used to merge the components into larger clusters. Furthermore, a split–merge Monte Carlo Markov chain is employed. Quantitative evaluations over BSD500 data set and MSRC data set show the proposed model is comparable to the state-of-the-art BN models and other graphical models in modelling unsupervised distance-dependent problems.
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2011-12
期刊:
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通讯作者:
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2015-09
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Signal, Image and Video Processing
影响因子:
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