Metrics, Quantization and Registration in Varifold Spaces
Metrics, Quantization and Registration in Varifold Spaces
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多种空间中的度量、量化和配准
DOI:
10.1007/s10208-020-09484-7
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发表时间:
2021
影响因子:
3
通讯作者:
Charon, Nicolas
中科院分区:
文献类型:
--
作者:
Hsieh, Hsi-Wei;Charon, Nicolas
This paper is concerned with the theory and applications of varifolds to the representation, approximation and diffeomorphic registration of shapes. One of its purpose is to synthesize and extend several prior works which, so far, have made use of this framework mainly in the context of submanifold comparison and matching. In this work, we instead consider deformation models acting on general varifold spaces, which allow to formulate and tackle diffeomorphic registration problems for a much wider class of geometric objects and lead to a more versatile algorithmic pipeline. We study in detail the construction of kernel metrics on varifold spaces and the resulting topological properties of those metrics and then propose a mathematical model for diffeomorphic registration of varifolds under a specific group action which we formulate in the framework of optimal control theory. A second important part of the paper focuses on the discrete aspects. Specifically, we address the problem of optimal finite approximations (quantization) for those metrics and show a-convergence property for the corresponding registration functionals. Finally, we develop numerical pipelines for quantization and registration before showing a few preliminary results for one- and two-dimensional varifolds.
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影响因子:
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作者:
Blanche Buet;G. P. Leonardi;S. Masnou
通讯作者:
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DOI:
10.1142/9789811200137_0003
发表时间:
2018-01
期刊:
Lecture Notes Series, Institute for Mathematical Sciences, National University of Singapore
影响因子:
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DOI:
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发表时间:
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期刊:
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影响因子:
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作者:
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影响因子:
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作者:
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通讯作者:
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DOI:
--
发表时间:
2013
期刊:
影响因子:
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作者:
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通讯作者:
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