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A Physically-Motivated Deformable Model Based on Fluid Dynamics

机译:基于流体动力学的物理动力可变形模型

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摘要

A novel deformable model for image segmentation and shape recovery is presented. The model is inspired by fluid dynamics and is based on a flooding simulation similar to the watershed paradigm. Unlike most watershed methods, our model has a continuous formulation, being described by two partial differential equations. In this model, different fluids, added by placing density (dye) sources manually or automatically, are attracted towards the contours of the objects of interest by an image force. In contrast to the watershed method, when different fluids meet they may mix. When the topographical relief of the image is flooded, the interfaces separating homogeneous fluid regions can be traced to yield the object contours. We demonstrate the flexibility and potential of our model in two experimental settings: shape recovery using manual initializations and automated segmentation.
机译:提出了一种新颖的变形模型用于图像分割和形状恢复。该模型受流体动力学启发,并基于类似于分水岭范式的洪水模拟。与大多数分水岭方法不同,我们的模型具有连续公式,由两个偏微分方程描述。在此模型中,通过手动或自动放置密度(染料)源而添加的不同流体被镜像力吸引到感兴趣对象的轮廓上。与分水岭方法相反,当遇到不同的流体时,它们可能会混合。当图像的地形浮雕被淹没时,可以追踪分离均匀流体区域的界面以产生物体轮廓。我们在两个实验设置中展示了模型的灵活性和潜力:使用手动初始化的形状恢复和自动分段。

著录项

  • 来源
    《》|2006年|P.496-507|共12页
  • 会议地点 Graz(AT)
  • 作者单位

    Institute for Mathematics and Computing Science, University of Groningen, P.O. Box 800, 9700 AV, Groningen, The Netherlands;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 信息处理(信息加工);
  • 关键词

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