Intraoral Scanner Imaging Without Live View Mode Switching
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Solution Overview
Problem
Existing intraoral scanners using structured light for 3D reconstruction require additional hardware and modes for live visual imaging, leading to increased cost and slower scanning due to mode switching, which is not efficient for self-scanning applications.
Innovation Solution
A method and system that uses data-driven techniques to generate artificially colorized visual images from structured light data without additional lighting sources or optics, leveraging machine learning to inpaint and correct color information in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a second white light source and optical elements are added to enable live view imaging, then the ability to display live images is improved, but the device complexity and cost increase
Solution Approach 1:
The patent creates a virtual copy of the live view image by processing the structured light projection images through image processing algorithms. Instead of adding physical optical components, the system generates a simulated live view image from the existing structured light data, effectively copying the visual information without requiring additional hardware.
Solution Approach 2:
The single structured light projection image serves multiple functions: it provides the data for both the 3D reconstruction and the live view imaging display. By processing the same projection images through different algorithms, the system achieves both scanning and visual imaging capabilities from one light source, eliminating the need for separate white light sources.
2Adaptability or versatility
If mode switching between structured light imaging and visual imaging is implemented, then live view capability is provided, but the scanning speed decreases
Solution Approach 1:
The system continuously processes structured light projection images to generate live view images throughout the scanning process. Instead of switching between modes, the system continuously derives visual information from the structured light data, maintaining uninterrupted scanning while providing live view capability. This eliminates mode switching delays and maintains scanning speed.
3Ease of operation
If additional hardware for visual imaging mode is added, then the scanner can provide live viewing, but the cost increases
Solution Approach 1:
The patent generates a virtual copy of the live view image through image processing algorithms applied to structured light projection images. This software-based approach replaces the need for expensive physical additional light sources and optical components, significantly reducing manufacturing cost while maintaining the ease of operation for users.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables faster and cost-effective intraoral scanning by eliminating the need for separate visual imaging modes, maintaining intuitive user experience while reducing hardware requirements and scanning time.
Implementation Method 1
projecting a pattern by means of an intraoral scanner onto a dental condition
Implementation Method 2
removing color-coded pattern information from at least one of the projection images; rendering, via a machine learning, texture and/or color information to the one or more anatomical features
Data Source
AI summary
A method for visualizing a dental condition, including: projecting a color-coded pattern type using an intraoral scanner; providing a number of projection images of the dental condition; detecting one or more anatomical features in each of the projection images; —removing color-coded pattern information from at least one of the projection images; rendering, via machine learning, color information to the one or more anatomical features in the projection images to generate corresponding at least partially artificially colorized plurality of projection images, The pattern information is removed through the rendering. A system, an intraoral scanner, software product and a storage medium are disclosed.