Deformable spatio-temporal shape models: extending active shape models to 2D+time
Deformable spatio-temporal shape models: extending active shape models to 2D+time
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DOI：
10.1016/j.imavis.2003.11.009
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发表时间：
2004-06-01
影响因子：
4.7
通讯作者：
Gustavsson, T
中科院分区：
文献类型：
--
作者：
Hamarneh, G;Gustavsson, T
本文通过提出一种时空形状（ST形状）的建模和分割方法，将二维主动形状模型扩展到二维+时间。建模部分包括构建ST形参数的统计模型。该模型描述了ST形状的变化的主要模式，除了对允许的变化的约束。主动方法用于分割，其中初始ST形状被变形以更好地拟合数据，并且使用动态规划计算最佳建议变形。合成和真实的数据的分割结果。(C)2003 Elsevier B.V.保留所有权利。
This paper extends 2D active shape models to 2D + time by presenting a method for modeling and segmenting spatio-temporal shapes (ST-shapes). The modeling part consists of constructing a statistical model of ST-shape parameters. This model describes the principal modes of variation of the ST-shape in addition to constraints on the allowed variations. An active approach is used in segmentation where an initial ST-shape is deformed to better fit the data and the optimal proposed deformation is calculated using dynamic programming. Segmentation results on both synthetic and real data are presented. (C) 2003 Elsevier B.V. All rights reserved.