arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.4384cs.CVmath.OCphysics.data-anq-bio.QMstat.AP
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基于非线性统计形状先验的迭代图割图像分割

Iterative graph cuts for image segmentation with a nonlinear statistical shape prior

UCLA Biomathematics and Mathematics(加州大学洛杉矶分校生物数学与数学系)

Joshua C. Chang, Tom Chou

摘要:

基于形状的正则化已被证明是一种有用的方法,用于在噪声图像中描绘对象,其中人们具有目标对象的形状的先验知识。当一组可能的形状可用时,使用核密度估计的形状先验规范是一种自然的技术。不幸的是,从核密度估计产生的能量泛函的形式,使他们不可能直接使用有效的优化算法,如图形切割最小化。我们的主要贡献是展示如何可以重铸的能量泛函的形式,是最小化迭代和有效地使用图形切割。

英文摘要:

Shape-based regularization has proven to be a useful method for delineating objects within noisy images where one has prior knowledge of the shape of the targeted object. When a collection of possible shapes is available, the specification of a shape prior using kernel density estimation is a natural technique. Unfortunately, energy functionals arising from kernel density estimation are of a form that makes them impossible to directly minimize using efficient optimization algorithms such as graph cuts. Our main contribution is to show how one may recast the energy functional into a form that is minimizable iteratively and efficiently using graph cuts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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