Bayesian Model-Based Automatic Landmark Detection for Planar Curves
Bayesian Model-Based Automatic Landmark Detection for Planar Curves
复制标题
基于贝叶斯模型的平面曲线自动地标检测
DOI:
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复制
发表时间:
2016
期刊:
影响因子:
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通讯作者:
S. Kurtek
中科院分区:
文献类型:
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作者:
Justin Strait;S. Kurtek
Identifying landmarks, points of interest on a shape, is crucial for many statistical shape analysis applications. Landmark-based methods dominate early literature, more recently, a method combining continuous shape outlines with landmark constraints was proposed. Unfortunately, methods requiring landmark specification depend on the number selected and their locations, such annotations are tedious for large datasets and subject to human interpretation. This work provides a Bayesian model-based method for automatic landmark selection, based on good approximations of landmark set interpolations. We outline an appropriate prior and likelihood, allowing for efficient posterior inference on landmark locations. The model allows for location uncertainty quantification, an important inferential procedure for further analysis. A method for selecting an appropriate number of landmarks is also discussed. Applications include a simulated example, shapes from the MPEG-7 dataset, and mice vertebrae.
影响因子:
4.4
作者:
Cheng, Wen;Dryden, Ian L.;Huang, Xianzheng
通讯作者:
Huang, Xianzheng
DOI:
10.1117/12.770570
发表时间:
2008
期刊:
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影响因子:
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作者:
Rueda S
通讯作者:
Rueda S