发明名称 |
Method and apparatus for segmenting images using stochastically deformable contours |
摘要 |
A method for segmenting an image in which an arbitrarily shaped contour is deformed stochastically until it approximates the contour of a target object. The evolution of the contour is controlled by a simulated annealing process which causes the contour to settle into a global minimum of an image-derived "energy" function. The non-parametric energy function is derived from the statistical properties of previously-segmented training images. High computational complexity is avoided by using an efficient method of introducing a random local perturbation, and assuring the resulting shape changes are unbiased. This method for perturbing the contour allows for execution times several orders of magnitude shorter than in simple implementations.
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申请公布号 |
US5768413(A) |
申请公布日期 |
1998.06.16 |
申请号 |
US19950539204 |
申请日期 |
1995.10.04 |
申请人 |
ARCH DEVELOPMENT CORP. |
发明人 |
LEVIN, DAVID N.;GRZESZCZUK, ROBERT P. |
分类号 |
G06T5/00;(IPC1-7):G06K9/00 |
主分类号 |
G06T5/00 |
代理机构 |
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主权项 |
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地址 |
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