Method for evaluating 3D data representing a 3D shape, auxiliary device obtained using such 3D data, and method for obtaining such 3D data
View Patent ↗A method is disclosed for evaluating data representing the three-dimensional shape of at least a portion of the surface of a human being or animal, in the following referred to as 3D data, wherein 3D data of at least two data sets, each representing the three-dimensional shape of at least a portion of the surface of a human being or animal and each taken from a database of three-dimensional shapes, in the following referred to as 3D data sets. Auxiliary devices may be manufactured based on 3D data stored in the data base, and a method for obtaining the 3D data to be stored in the data base is also disclosed.
1 . A method for evaluating data representing the three-dimensional shape of at least a portion of a surface of a human being or animal, in the following referred to as three-dimensional (3D) data, the method comprising:
obtaining three-dimensional (3D) data of at least two 3D data sets using an optical recording device that is adapted and configured for taking images containing three-dimensional data of the surface, wherein the optical recording device includes a 3D camera that is adapted to record 3D images and an inertial measurement unit that is adapted to detect movement and orientation of the optical recording device in three-dimensional space;
moving the optical recording device along the surface while taking a plurality of 3D images;
detecting the movement and orientation of the optical recording device in the three-dimensional space with the inertial measurement unit;
determining a three-dimensional shape of the surface by taking into account a temporal correlation of the data acquired by the inertial measurement unit with the 3D data provided by the optical recording device; and
providing detection data representing the determined three-dimensional shape of the surface,
wherein the 3D data of the at least two 3D data sets, each representing the three-dimensional shape of at least a portion of the surface of a human being or animal and each taken from a database of three-dimensional shapes, are evaluated,
wherein the at least two 3D data sets are 3D data sets obtained for different human beings or animals to compare the three-dimensional shapes of the different human beings or animals.
2 . The method of any of claim 1 ,
wherein at least some of the 3D data sets of the database include additional information related to the 3D data.
3 . The method of claim 2 ,
wherein the additional information includes information about a device adapted and configured to fit to a surface represented by the 3D data.
4 . The method of claim 1 ,
wherein 3D data of at least two 3D data sets are used for manufacturing an auxiliary device.
5 . The method of claim 4 ,
wherein two 3D data sets are used for manufacturing said auxiliary device, namely two 3D data sets obtained for the same portion of the surface of two different human beings or animals.
6 . The method of claim 4 ,
wherein at least three data sets are used for manufacturing said auxiliary device, namely a first data set obtained for the portion of the surface of the human being or animal, and at least two data sets obtained for the portion of the surface of another human being or animal at different points of time.
7 . A compensation pad manufactured using the method of claim 4 .
8 . A positive fitting device and/or a negative fitting device manufactured using the method of claim 4 .
9 . A fitting device including a three-dimensional positive model of the three-dimensional shape of at least a portion of the surface of a human being or animal on its upper side and a three-dimensional negative model of said three-dimensional shape on its lower side manufactured according to claim 4 .