3D Scan Data Supplement with Library Models
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Solution Overview
Problem
In 3-D scanning, insufficient data is often obtained due to limitations in scanning time or material properties like metal, leading to incomplete or erroneous data sets, which can result in user fatigue and reduced convenience.
Innovation Solution
A method and system that supplement scan data with library model data through a post-processing alignment process, where library model data is integrated with scan data to fill gaps and correct errors, using a combination of local and global alignment techniques to generate a reliable 3-D model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3-D scanning is performed with sufficient time and detail to obtain complete data, then data completeness is improved, but scanning time and user fatigue increase
Solution Approach 1:
The patent applies preliminary action by pre-storing accurate 3-D model data of prosthetic appliances (abutments, scanbodies, crowns, bridges) in a library before scanning occurs. During scanning, when data is insufficient or erroneous, the system automatically retrieves and supplements the scan data with the corresponding pre-stored library data, eliminating the need for prolonged scanning to ensure completeness.
Solution Approach 2:
The patent uses library data as an intermediary between the scanning process and the final 3-D model. When scan data is insufficient or contains errors, the library data acts as a mediator to supplement and correct the scan data, ensuring data completeness without requiring extended scanning time or user intervention.
2Productivity
If light radiation scanning is used to obtain data of metal materials, then scanning speed is improved, but data accuracy deteriorates due to severe light reflection
Solution Approach 1:
The patent uses library data as an intermediary to overcome the limitation of light radiation scanning for metal materials. When the scanner encounters severe light reflection from metal surfaces resulting in inaccurate data, the system retrieves the accurate pre-stored library data of the corresponding prosthetic appliance to supplement and correct the scan data, maintaining both scanning speed and data accuracy.
Solution Approach 2:
The patent applies copying by creating accurate digital copies of prosthetic appliances (abutments, scanbodies, crowns, bridges) and storing them in a library. These digital copies serve as reference data to replace or supplement inaccurate scan data obtained from challenging surfaces like metal, ensuring measurement precision without sacrificing scanning speed.
3Reliability
If manual scanning is performed to minimize insufficient data, then data quality is improved, but user convenience deteriorates due to fatigue
Solution Approach 1:
The patent applies self-service by enabling the system to automatically retrieve, match, and supplement scan data with library data without requiring manual intervention. The system autonomously identifies insufficient or erroneous scan data, retrieves corresponding library data, and performs supplementation, eliminating the need for users to manually rescan or correct data, thus improving both data quality and user convenience.
Solution Approach 2:
The library data acts as an intermediary that automates the data supplementation process. Instead of requiring users to manually ensure complete scanning, the system uses library data to automatically fill gaps and correct errors in scan data, improving data quality while enhancing user convenience by eliminating manual correction efforts.
4Reliability
If scan data is supplemented with library model data in post-processing, then data completeness is improved, but processing complexity increases
Solution Approach 1:
The patent applies universality by creating a multi-functional system where the library serves multiple purposes: storing accurate reference data, enabling automatic data supplementation, providing error correction, and supporting various prosthetic appliance types (abutments, scanbodies, crowns, bridges). This universal library approach improves data completeness while managing processing complexity through a unified solution.
Solution Approach 2:
The library data acts as an intermediary that simplifies the post-processing complexity. Instead of requiring complex manual data completion procedures, the system uses the library as a mediator to automatically retrieve and integrate appropriate reference data, improving data completeness while keeping the processing workflow straightforward and manageable.
Data Source
AI summary
A method for supplementing scan data by using library data according to the present invention comprises: a scan step of acquiring scan data of a subject including a structure; a step of selecting library model data corresponding to the structure; and a step of post-processing the scan data, wherein the library model data is added at the step of post-processing of the scan data and is post-processed together with the scan data. Accordingly, the scan data in which distortion or a data gap has occurred is supplemented by the library model data, and thus a user acquires a highly reliable three-dimensional model.