Surface reconstruction for generating digital models of prosthesis
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2011-03-05
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DE AQUINO, L. C. M.
LEITE, D. A. T. Q.
GIRALDI, G. A.
CARDOSO, J. S.
Paulo Rodrigues
NEVES, L. A. P.
LEITE, D. A. T. Q.
GIRALDI, G. A.
CARDOSO, J. S.
Paulo Rodrigues
NEVES, L. A. P.
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VISAPP 2011 - Proceedings of the International Conference on Computer Vision Theory and Application
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DE AQUINO, L. C. M.; LEITE, D. A. T. Q.; GIRALDI, G. A.; CARDOSO, J. S.; RODRIGUES, P.; NEVES, L. A. P. Surface reconstruction for generating digital models of prosthesis. VISAPP 2011 - Proceedings of the International Conference on Computer Vision Theory and Application, p. 137-142, mar. 2011.
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The restoration and recovery of a defective skull can be performed through operative techniques to implant a customized prosthesis. Recently, image processing and surface reconstruction methods have been used for digital prosthesis design. In this paper we present a framework for prosthesis modeling. Firstly, we take the computed tomography (CT) of the skull and perform bone segmentation by thresholding. The obtained binary volume is processed by morphological operators, frame-by-frame, to get the inner and outer boundaries of the bone. These curves are used to initialize a 2D deformable model that generates the prosthesis boundary in each CT frame. In this way, we can fill the prosthesis volume which is the input for a marching cubes technique that computes the digital model of the target geometry. In the experimental results we demonstrate the potential of our technique and compare it with a related one.