Color Dashed Line Pattern for Dental 3D Scanning
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Solution Overview
Problem
Conventional dental 3D scanners require multiple scanning operations with different light patterns, making the process inconvenient and time-consuming for both professionals and patients due to the need for repeated insertion of the scanner into the mouth.
Innovation Solution
A dental 3D scanner uses a color dashed line pattern with multiple dashed line patterns, each with a unique color, to project and capture images, allowing for efficient and precise 3D data generation of intraoral structures with fewer scanning operations by isolating and processing individual dashed line patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple scanning operations with different light patterns are performed, then 3D scanning completeness is improved, but scanning time and operational inconvenience increase
Solution Approach 1:
The patent combines multiple light patterns (first dashed line pattern and second dashed line pattern with different colors) into a single composite light pattern that is projected onto the target object simultaneously. This allows the imaging device to capture multiple measurement datasets in one scanning operation, thereby maintaining complete 3D scanning coverage while significantly reducing the total scanning time and number of required operations.
Solution Approach 2:
The light pattern is segmented into multiple colored dashed line patterns (e.g., red and blue) that can be independently processed. Each colored pattern corresponds to a specific dashed line pattern that can be isolated and processed separately from the captured image, allowing parallel extraction of multiple measurement datasets from a single composite projection.
2Measurement precision
If multiple scanning operations with different light patterns are performed, then 3D scanning completeness is improved, but operational convenience deteriorates
Solution Approach 1:
The patent merges multiple light patterns into a single composite pattern that is projected and captured in one operation. This eliminates the need for the operator to perform multiple separate scanning operations, thereby maintaining complete measurement data while significantly improving operational convenience for both professionals and patients.
3Productivity
If a single light pattern is used for scanning, then scanning speed is improved, but measurement completeness deteriorates
Solution Approach 1:
The single composite light pattern is segmented into multiple colored components (e.g., red dashed lines and blue dashed lines) that can be independently isolated and processed from the captured image. This segmentation allows the system to extract multiple independent measurement datasets from a single scanning operation, thereby maintaining measurement completeness while achieving high scanning speed.
Solution Approach 2:
The patent uses different colors to distinguish between multiple dashed line patterns within the single composite light pattern. The imaging device captures the composite pattern with color information, and subsequent processing isolates individual colored patterns to extract separate measurement datasets, enabling both speed and completeness.
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 precise and complete 3D scanning of intraoral structures in a shorter time with fewer operations, reducing inconvenience for both professionals and patients by generating 3D data using a single color dashed line pattern projection.
Implementation Method 1
projecting a predetermined measurement light onto a target object, capture an image of the target object with the measurement light projected thereon
Data Source
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AI summary
The disclosure is related to a method and apparatus of scanning a target object in three dimensions (3D). The method may include projecting a color dashed line pattern onto a target object, scanning the target object with the color dashed line pattern projected thereto, and producing a 3D data of the target object by processing the scanning result. The color dashed line pattern may include multiple dashed line patterns each of which is individually used to calculate the 3D data of the target object.