String Methods for Stochastic Image and Shape Matching
String Methods for Stochastic Image and Shape Matching
复制标题
用于随机图像和形状匹配的字符串方法
DOI:
10.1007/s10851-018-0823-z
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发表时间:
2018
影响因子:
2
通讯作者:
Arnaudon A
中科院分区:
文献类型:
--
作者:
Arnaudon A
Matching of images and analysis of shape differences is traditionally pursued by energy minimization of paths of deformations acting to match the shape objects. In the large deformation diffeomorphic metric mapping (LDDMM) framework, iterative gradient descents on the matching functional lead to matching algorithms informally known as Beg algorithms. When stochasticity is introduced to model stochastic variability of shapes and to provide more realistic models of observed shape data, the corresponding matching problem can be solved with a stochastic Beg algorithm, similar to the finite-temperature string method used in rare event sampling. In this paper, we apply a stochastic model compatible with the geometry of the LDDMM framework to obtain a stochastic model of images and we derive the stochastic version of the Beg algorithm which we compare with the string method and an expectation-maximization optimization of posterior likelihoods. The algorithm and its use for statistical inference is tested on stochastic LDDMM landmarks and images.
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DOI:
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发表时间:
2010
期刊:
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作者:
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通讯作者:
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DOI:
10.1007/978-3-319-59050-9_45
发表时间:
2016
期刊:
ArXiv
影响因子:
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期刊:
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-METHODOLOGICAL
影响因子:
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RUBIN, DB
DOI:
10.1016/j.amc.2019.03.044
发表时间:
2017
期刊:
ArXiv
影响因子:
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作者:
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通讯作者:
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DOI:
10.1137/16m1079282
发表时间:
2016
期刊:
SIAM J. Imaging Sci.
影响因子:
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作者:
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T. Shardlow