Real-Time 3D Scanning Feedback System for Complete Object Coverage
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Solution Overview
Problem
Users, both novice and experienced, often fail to capture all parts of an object during 3D scanning sessions, leading to incomplete scans due to lack of effective feedback systems that do not encourage scanning of unseen areas, resulting in inferior models.
Innovation Solution
A real-time feedback system comprising two components: the first computes and displays scanning progress using a dummy object model to ensure complete coverage, and the second component guides users to capture missing parts by providing intuitive hints on device movement and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If standard visualization systems like KinectFusion are used to show captured parts, then users can see the scanned object from different angles, but users still stop scanning prematurely and fail to capture all parts of the object
Solution Approach 1:
The patent implements a feedback mechanism that provides real-time information to users about which parts of the object have been scanned and which parts are missing. The system displays uncovered regions directly on the visualization, creating a closed-loop feedback system that guides users to complete their scanning of all object surfaces.
Solution Approach 2:
The patent uses color coding to differentiate between scanned and unscanned regions of the object. Uncovered areas are highlighted with distinct visual indicators (such as red or yellow coloring), while scanned areas appear in normal colors, making it immediately obvious to users what portions need additional scanning.
2Loss of information
If the feedback system highlights problematic areas, then users can identify what needs scanning, but the feedback becomes complicated and less intuitive
Solution Approach 1:
The patent applies feedback locally by highlighting only the specific unscanned regions that need attention, rather than presenting a complex overall status report. This localized approach keeps the interface simple and intuitive while still providing comprehensive information about what needs to be scanned.
Solution Approach 2:
The patent creates a simplified visual copy or representation of the object's scanning status, displaying only the essential information about uncovered regions. This abstracted visualization maintains intuitiveness while conveying the necessary information about scan completeness.
3Manufacturing precision
If the system requires users to scan from all directions to achieve complete coverage, then scan quality improves, but users spend more time scanning and may become frustrated
Solution Approach 1:
The real-time feedback system continuously updates users on their scanning progress and highlights specific areas that need attention, allowing users to efficiently navigate to unscanned regions without unnecessary back-and-forth movements. This guidance reduces the overall time required to achieve complete coverage.
Solution Approach 2:
The system performs preliminary analysis of the scanned data to identify uncovered regions before the user completes the scanning process. By pre-calculating and displaying these missing areas, the system guides users directly to the most valuable scanning locations, reducing redundant movements and time spent.
Data Source
AI summary
The present invention provides a method for providing feedback to a user during a 3D scanning session and guides the user to finish scanning completely.