US 11,422,531 B2 · System and methods for 3D model evaluation

Abstract

A method, in each of three orthogonal orientations, obtains dimensional layers of triangular mesh data of the 3D object from a slicer program. Perimeter length values for each layer of each of the three orthogonal orientations are obtained and compared to stored perimeter length value for a reference object to determine a degree of matching. Measurement data is facilitated by processing by CNC/3D print software. Smaller objects within the 3D object are also analyzed. For a more robust approach, each triangle in the triangular mesh data is analyzed by totaling the perimeter of surrounding triangles to assign a value. Matching with the reference object is made based on the assigned total perimeter values. The 3D object can be scaled in one, two or three orthogonal dimensions to match the reference object.

Claims11

Dependent claims

A method of comparing two or more three-dimensional (3D) object models comprising:

receiving triangular mesh data describing two or more three-dimensional (3D) object models;
assigning one of the two or more three-dimensional (3D) object models as a reference object;
evaluating at least one 3D triangle from each received triangular mesh data of the two or more three-dimensional (3D) object models as a reference triangle, and for each reference triangle:
a). identifying three adjacent triangles that share a side with the reference triangle;
b). calculating a total perimeter value for length of the perimeters of the three adjacent triangles;
and
c). assigning the total perimeter value to the reference triangle;
comparing the total perimeter values assigned to one or more 3D object models to the total perimeter values assigned to the reference object;
and
determining whether a match exists between one or more three-dimensional (3D) object models object and the reference object based upon an amount of matching of obtained total perimeter values.

7 more elements

A method for comparing two or more three-dimensional (3D) objects comprising:

receiving triangular mesh data describing the two or more three-dimensional (3D) objects;
evaluating at least one 3D triangle from each of the received triangular mesh data of the two or more three-dimensional 3D objects as a reference triangle, and for each reference triangle:
identifying three adjacent triangles that share a side with the reference triangle;
calculating a total perimeter value for a length of the perimeters of the three adjacent triangles;
and
assigning the total perimeter value to the reference triangle;
comparing the total perimeter values assigned to the 3D object to total perimeter values assigned to a reference three-dimensional (3D) object;
and
determining whether a match exists between the two or more three-dimensional (3D) objects based upon an amount of matching of obtained total perimeter values.

6 more elements

Dependencies are inferred from the claim text.

System and methods for 3D model evaluation

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System and methods for 3D model evaluation

Life of this patent

Abstract

Claims11