US 12,266,070 B2
Method for generating a virtual 4D head and teeth
Xavier P. Burgos Artizzu, Madrid (ES); and Wenceslao Piedra Cascón, Madrid (ES)
Assigned to MOVUM TECH, S.L., Madrid (ES)
Appl. No. 18/023,906
Filed by MOVUM TECH, S.L., Madrid (ES)
PCT Filed Sep. 27, 2021, PCT No. PCT/ES2021/070695
§ 371(c)(1), (2) Date Feb. 28, 2023,
PCT Pub. No. WO2022/069775, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 202030984 (ES), filed on Sep. 30, 2020.
Prior Publication US 2023/0260238 A1, Aug. 17, 2023
Int. Cl. G06T 19/20 (2011.01); A61C 13/34 (2006.01); G06T 7/246 (2017.01); G06T 7/73 (2017.01); G06T 13/40 (2011.01)
CPC G06T 19/20 (2013.01) [A61C 13/34 (2013.01); G06T 7/251 (2017.01); G06T 7/75 (2017.01); G06T 13/40 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/20036 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/30036 (2013.01); G06T 2210/41 (2013.01); G06T 2219/2004 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for the generation of a head and virtual denture of a patient, wherein said method comprises:
data preparation, which in turn comprises:
generation of a 3D virtual model of the head, obtained from images of a patient under study,
generation of a 3D virtual denture model of a patient's denture, obtained from data of the patient's teeth morphology,
determining the position of the 3D virtual denture model with respect to the 3D virtual model of the head,
fusion and anchoring of the 3D virtual denture model inside the 3D virtual model of the head in a neutral state,
training an artificial neural network on a database of 2D images of people performing different facial gestures and its corresponding 3D model with denture included in its corresponding position, learning the artificial neural network to estimate a movement of the 3D virtual denture model with respect to the 3D virtual model of the head,
integration of the movement of the 3D virtual model of the head and 3D virtual denture model, which in turn comprises:
animation of the 3D virtual model of the head from a set of 2D images of the patient, resulting in an animated 3D model of the patient's head,
independently positioning the 3D virtual denture model inside the animated 3D model, by applying an amount of movement to the 3D virtual denture model estimated from the set of 2D images of the patient by using the artificial neural network trained during the data preparation, and
fusion of the 3D virtual denture model with the animated 3D model, resulting in a fully animated 3D model consisting of the patient's head and denture.