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Feature based models for anatomical data fitting

✍ Scribed by Gregory T Dobson; Warren N Waggenspack Jr; Henry J Lamousin


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
935 KB
Volume
27
Category
Article
ISSN
0010-4485

No coin nor oath required. For personal study only.

✦ Synopsis


Taking advantage of the known, geometric structure of the data being fit, a generic model having this shape is used as an initial approximation.

The model is first globally sized and aligned with the data on the basis of the min/max box, principal axes and landmarks.

Once aligned, features embedded within the model, corresponding to pertinent characteristics of the data, are adjusted to better fit the data. Finally, vertices and weights of the rational B-spline are optimized to locally deform the model and approximate the data to within a specified tolerance. The feature based modelling approach is demonstrated in 2D by the fitting of facial profiles.


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