3D measurement of surface geometry and asymmetry of the face
An objective method to quantitatively measure the three-dimensional surface of the face and its asymmetries
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Symmetry of facial features is an essential criterion for the attractiveness of a person. Asymmetries in this identity-forming area are often perceived negatively, and in many cases the restoration of severely damaged facial areas is also indispensable from a medical point of view. With the method presented here, facial symmetries can be objectively recorded using a three-dimensional grid model consisting of a combination of different feature points. Two-dimensional as well as three-dimensional pathways on the surface of the face can thus be represented spatially. Within the scope of this work...
Symmetry of facial features is an essential criterion for the attractiveness of a person. Asymmetries in this identity-forming area are often perceived negatively, and in many cases the restoration of severely damaged facial areas is also indispensable from a medical point of view. With the method presented here, facial symmetries can be objectively recorded using a three-dimensional grid model consisting of a combination of different feature points. Two-dimensional as well as three-dimensional pathways on the surface of the face can thus be represented spatially. Within the scope of this work, the area enclosed between a two-dimensional path and the three-dimensional surface was also determined. The three-dimensional grid mask was developed on the basis of a puppet model and tested on normal-symmetrical test persons and asymmetrical patients. The system offers practical applications for surgery planning and simulation in the complex facial region and optimizes the evaluation of treatment results.
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