Digital preparation method for orofacial cleft external nose orthopedic appliance
An appliance and a technique for cleft lip and palate are applied in the field of digital preparation of appliances for cleft lip and palate external nasal deformity, and can solve the problems of unpredictable treatment process and effect, unstable manufacturing precision, and limited popularization and application.
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[0028] The technical solution adopted in the present invention is: a digital preparation method of a cleft lip and palate external nasal appliance, and its specific technical means are as follows:
[0029] 1) Acquisition of 3D face data of children with cleft lip and palate: 3d MD Face visible light 3D scanner is used to scan the face of children with cleft lip and palate directly; The collaborative camera system takes synchronous photography on the face of the child, generates a continuous point cloud, and obtains two digital images of the face of the child with cleft lip and palate. After bundle adjustment, image processing and matching, and digital calculation, the external nose-cleft lip 3D data of the face;
[0030] 2) Three-dimensional reconstruction of the facial digital model of the child with cleft lip: the original three-dimensional data of the child's face obtained in step 1 was retrieved, and unnecessary noise and bad points were removed through three-dimensional ...
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