Intraoral 3D Scanner Self-Localization Guiding System
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Solution Overview
Problem
Existing methods for guiding the relative movement of objects in 3D spaces often rely on external localization devices, which can be cumbersome and inefficient, especially in applications like dental and surgical procedures where precision and real-time feedback are critical.
Innovation Solution
A 3D guiding system that includes a 3D scanner for scanning the second object, a non-transitory computer-readable medium for storing a 3D model, and program code for determining the present relative arrangement and calculating guidance information to align the first and second objects to a preferred relative arrangement without external localization, using real-time data for precise movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external localization devices are used for guiding relative movement of objects, then guidance accuracy can be maintained, but device complexity and operational cumbersome increase
Solution Approach 1:
The patent extracts and eliminates the external localization device from the system by implementing an internal 3D scanning system within the first object. This allows the system to determine its own position and orientation relative to the second object without requiring separate external localization equipment, thereby reducing device complexity while maintaining guidance accuracy through the integrated 3D scanning capability
Solution Approach 2:
The first object is designed to perform multiple functions: it serves as both the object to be moved and as the localization system through its integrated 3D scanner. This multi-functionality eliminates the need for separate external localization devices, reducing system complexity while maintaining the ability to accurately determine relative position and orientation
2Measurement precision
If external localization devices are used for guiding relative movement, then position tracking is achievable, but ease of operation deteriorates
Solution Approach 1:
The system performs self-localization through the 3D scanner integrated in the first object, which automatically determines the relative position and orientation without requiring external devices or complex setup procedures. This self-service capability improves ease of operation while maintaining position tracking accuracy
3Measurement precision
If 3D scanning is performed continuously for real-time guidance, then alignment accuracy improves, but energy consumption increases
Solution Approach 1:
The 3D scanning is performed periodically at relevant moments during the movement process rather than continuously, allowing the system to maintain alignment accuracy by scanning at key positions and transitions while reducing overall energy consumption by avoiding unnecessary continuous scanning
Data Source
AI summary
An intraoral 3D scanner includes a probe light source configured to generate a probe light such that the probe light is transmitted towards the dental situation; a camera including an array of sensor elements, the camera being arranged such that the probe light from the dental situation is transmitted to the array of sensor elements, wherein the camera is configured to create images of the dental situation from which a point cloud is generated, and a guiding system configured to guide relative movement of the intraoral 3D scanner towards the dental situation, wherein the camera is part of the guiding system, the camera is configured to record images from which a relative position of the intraoral 3D scanner and the dental situation is determined, such that based on the relative position, the guiding system is configured to provide a positioning signal in the form of a positioning color code.