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The '''Active Shape Model''' is a well known contour model used in image processing. An active shape model is constructed by taking a set of points around the outline of an object. As the object moves so do the corresponding points. The distribution of these points can then be examined by [[statistics|statistical]] techniques such as [[principal components analysis]] to find the dominant modes of variation. A combination of these modes is then used to construct a model of how the [[shape]] of an object changes with time.
Active shape models are often used for [[biological data]] such as a walking person, and used as a technique for indentifying an object in a scene.
The Active Shape Model Toolkit is a set of software tools for image interpretation developed by Dr [[Tim Cootes]], a research fellow at the Wolfson Image Analysis Unit of the [[University of Manchester]]. The toolkit provides a variety of two-dimensional image analysis techniques intended for applications in industry, medicine and science. The toolkit is available as an add-on for [[MatLab]].
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