Dental Arch 3D Scanning with Auxiliary Markers for Accurate Splicing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing three-dimensional scanning systems for dental applications face challenges in achieving high accuracy while maintaining cost-effectiveness, particularly in intraoral scanning, due to the use of auxiliary devices with large fields of view that are expensive and difficult to popularize.
Innovation Solution
A three-dimensional scanning system that utilizes an auxiliary member, designed as a polyhedron of irregular polygons, mounted on dental arch implants, which is used to optimize local multi-frame data with standard three-dimensional data to achieve overall dental arch reconstruction, reducing costs and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an auxiliary device with a large field of view is used to improve scanning accuracy, then the accuracy of three-dimensional scanning is improved, but the cost increases and it becomes more difficult to popularize
Solution Approach 1:
The patent divides the scanning system into two parts: a low-cost intraoral scanner for capturing detailed local data, and a simple auxiliary member with recognizable features for providing global reference. This segmentation allows each component to be optimized independently, maintaining high accuracy while reducing overall cost.
Solution Approach 2:
The auxiliary member acts as an intermediary that bridges the intraoral scanner and the scanning data processing device. It provides recognizable features that enable accurate data splicing and positioning without requiring the scanner itself to be expensive or complex.
2Measurement precision
If an auxiliary device with a large field of view is used to improve scanning accuracy, then the accuracy of three-dimensional scanning is improved, but the device complexity increases
Solution Approach 1:
The system separates the complex data processing functions from the physical scanning device. The intraoral scanner remains simple, while the complexity is moved to the software algorithm that performs optimized splicing using the auxiliary member's recognizable features.
Solution Approach 2:
The auxiliary member serves as a simple intermediary physical object that does not add complexity to the scanner. It consists of basic geometric features that are easy to manufacture and scan, while enabling complex positioning and orientation calculations through software.
3Measurement precision
If optimized splicing is performed on local multi-frame three-dimensional data and standard three-dimensional data of the auxiliary member, then the accuracy of overall three-dimensional data is improved, but the processing complexity increases
Solution Approach 1:
The auxiliary member's standard three-dimensional data and recognizable features are prepared in advance. During scanning, the system only needs to match these pre-defined features with the captured images, significantly reducing real-time processing complexity while maintaining high accuracy.
Solution Approach 2:
The optimized splicing algorithm uses feedback from the recognizable features on the auxiliary member to iteratively improve the alignment and positioning of multiple local scans. This feedback mechanism enables accurate global reconstruction without requiring excessively complex processing at each step.
Data Source
Figure 1~2
Figure 3~5
Figure 6
AI summary
The present disclosure relates to a three-dimensional scanning system, a method and apparatus for processing scanning data, and a storage medium. The system includes a three-dimensional scanning device and auxiliary members. The auxiliary member is configured to be mounted on an implant of a dental arch in an oral cavity. The three-dimensional scanning device is configured to scan the oral cavity to obtain local multi-frame three-dimensional data of the oral cavity, and to finally optimize and determine, on the basis of the local multi-frame three-dimensional data of the oral cavity and standard three-dimensional data of the auxiliary member, overall three-dimensional data of teeth and gums in the oral cavity. The three-dimensional scanning system can achieve the purposes of reducing the optimization cost and improving the accuracy of the full dental arch, and meets the accuracy requirements of multiple-missing-position or edentulous jaw implant bridges, thereby facilitating popularization and application.