Dynamic color visualization in three-dimensional model of dental object

By generating 3D models of dental objects using an intraoral scanning system and dynamically adjusting colors, the problem of color invariance in existing technologies is solved, achieving more realistic color representation and accurate measurement.

CN122156424APending Publication Date: 2026-06-053SHAPE AS
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Patent Information

Application Number
CN202511769448.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-12-05
Filing Date
2025-11-28
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the prior art, the colors of the 3D representation generated by intraoral scanners cannot change dynamically, resulting in inaccurate colors under different viewing directions, making them unsuitable for effective comparison and measurement. In particular, the infrared image modality depends on the scanner's viewing direction.

Method used

A 3D model of a dental object is generated using an intraoral scanning system. Multiple texture values ​​are assigned, and the color is dynamically adjusted according to the viewing direction of the virtual camera. The texture values ​​of vertices are determined using multiple texture rays and intersection criteria. Weighting coefficients and interpolation techniques are combined to ensure that the color matches the viewing direction.

Benefits of technology

It achieves more realistic and accurate color representation of 3D models, and the color automatically adjusts as the viewing direction changes, improving the accuracy of measurement and comparison.

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Abstract

The invention relates to a computer-implemented method and an intraoral scanning system. A computer-implemented method of eliminating glare defects in processed image scan data includes: receiving a plurality of image scan data of a dental subject generated by an intraoral scanner; processing one or more of the plurality of image scan data into processed image scan data, the processed image scan data comprising a plurality of pixels; determining a plurality of defect pixels in the processed image scanning data through a glare detection algorithm, wherein the glare detection algorithm may be configured to determine the plurality of defective pixels when a pixel value of each of the plurality of defective pixels satisfies one or more pixel value criteria and when an arrangement geometry of the plurality of defective pixels satisfies one or more geometry criteria; analyzing pixels near the plurality of defective pixels in the plurality of pixels through a glare elimination algorithm to determine non-glare image scan data; and replacing the processed image scan data in the plurality of defective pixels with the non-glare image scan data.
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