US 11,628,047 B2 · Operating intraoral scanner capable of constructing accurate dental model and method thereof

Abstract

A method of operating an intraoral scanner. The intraoral scanner includes an image capturing device and a processor. The method includes the image capturing device sequentially capturing M images along a first dental arch, the processor establishing a first arch model of the first dental arch according to the M images, the image capturing device sequentially capturing N images along a straight-line path from a first anchor to a second anchor on the first dental arch, the processor generating first coordinates of the first anchor and second coordinates of the second anchor according to the N images, and the processor calibrating the first arch model according to the first coordinates and the second coordinates. The first anchor is located at one side of a dental midline of the first dental arch. The second anchor is located at the other side of the dental midline of the first dental arch.

Claims20

Dependent claims

A method of operating an intraoral scanner, the intraoral scanner comprising an image capturing device and a processor, the method comprising:

the image capturing device sequentially capturing M images along a first dental arch, M being a positive integer exceeding 1;
the processor constructing a first arch model of the first dental arch according to the M images;
the image capturing device sequentially capturing N images along a straight-line path between a first anchor point of the first dental arch to a second anchor point of the first dental arch, the first anchor point being located at one side of a dental midline of the first dental arch, the second anchor point being located at another side of the dental midline of the first dental arch, N being a positive integer exceeding 1;
the processor generating first coordinates of the first anchor point and second coordinates of the second anchor point;
and
the processor correcting the first arch model according to the first coordinates and the second coordinates.

3 more elements

An intraoral scanner comprising:

an image capturing device;
and
a processor coupled to the image capturing device;
wherein the image capturing device is configured to sequentially capture M images along a first dental arch, M being a positive integer exceeding 1;
the processor is configured to construct a first arch model of the first dental arch according to the M images;
the image capturing device is further configured to sequentially capture N images along a straight-line path between a first anchor point of the first dental arch to a second anchor point of the first dental arch, the first anchor point being located at one side of a dental midline of the first dental arch, the second anchor point being located at another side of the dental midline of the first dental arch, N being a positive integer exceeding 1;
and
the processor is further configured to generate first coordinates of the first anchor point and second coordinates of the second anchor point, and corrects the first arch model according to the first coordinates and the second coordinates.

5 more elements

Dependencies are inferred from the claim text.

Operating intraoral scanner capable of constructing accurate dental model and method thereof

Life of this patent

Operating intraoral scanner capable of constructing accurate dental model and method thereof

Life of this patent

Abstract

Claims20