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Free Form Deformations or Deformations Non-Constrained by Geometries or Topologies

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Part of the book series: Lecture Notes in Computational Vision and Biomechanics ((LNCVB,volume 7))

Abstract

Free-form deformations are widely used to model 3D objects. In these methods “free-form” designates: “whatever the object is, whatever its description and topology, we are able to deform it”. They limit the user interaction to pull some points of an embedding rough mesh. From the user point-of-view, it does not matter if the object manipulated is 3-dimensional, of 0-genus or a parametric surface, he or she always uses the same process to model a complex object: load an initial object from a library and deform it via Ffd methods to follow his (her) needs. A large number of deformation methods have been published, allowing new deformations, new kinds of controls or enhancing the description of resulting objects. In fact advantage of deformation non-constrained by geometries is also a drawback: as it only manipulates points it could only result in points, so its necessary to use and maintain the neighborhood (the topology) or the surface expression on a second hand, as these methods do not care of object description.

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Correspondence to Romain Raffin .

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Raffin, R. (2013). Free Form Deformations or Deformations Non-Constrained by Geometries or Topologies. In: González Hidalgo, M., Mir Torres, A., Varona Gómez, J. (eds) Deformation Models. Lecture Notes in Computational Vision and Biomechanics, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5446-1_2

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  • DOI: https://doi.org/10.1007/978-94-007-5446-1_2

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