3D Scanning Feedback via Haptic Pose Tracking
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Solution Overview
Problem
Existing three-dimensional scanning technologies lack real-time feedback mechanisms to ensure comprehensive data capture, leading to potential inaccuracies in generated models due to insufficient contour measurements from varying vantage points.
Innovation Solution
A method involving computer-tracking of a scanning device's pose relative to the object, assessing the sufficiency of contour measurements, and providing haptic and visual feedback to guide the user in completing the scan, ensuring adequate data capture from multiple vantage points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple vantage points are used to scan the object, then measurement precision is improved, but loss of time increases due to the need to capture data from multiple angles
Solution Approach 1:
The system provides real-time haptic feedback to the user during scanning, indicating whether sufficient contour measurements have been obtained from current and previous vantage points. This feedback mechanism guides the user to complete necessary scanning movements, ensuring measurement precision while minimizing unnecessary scanning time by immediately indicating when sufficient data has been captured.
2Manufacturing precision
If comprehensive contour measurements are obtained from multiple vantage points, then manufacturing precision of the three-dimensional model is improved, but device complexity increases due to the need for tracking and feedback systems
Solution Approach 1:
The system introduces a computing device as an intermediary that handles the complex tasks of tracking the scanning device's pose, assessing measurement sufficiency, and generating haptic feedback signals. This intermediary processes the complex computations centrally, allowing the physical scanning device to remain relatively simple while still achieving high manufacturing precision through sophisticated software-based assessment and feedback mechanisms.
3Productivity
If real-time feedback is provided during scanning, then productivity is improved by reducing re-scanning needs, but use of energy increases due to continuous tracking and feedback generation
Solution Approach 1:
The system employs self-service mechanisms where the haptic feedback device utilizes the scanning device's existing motion and measurement capabilities to generate feedback signals. The assessment of measurement sufficiency leverages data already being collected during normal scanning operations, and the haptic feedback system uses the scanning device's own motion state information, thereby minimizing additional energy consumption while maintaining high scanning productivity.
Data Source
AI summary
Examples of providing feedback regarding a scan of a three-dimensional object are described. In one example, a method of computer modeling a three-dimensional object includes computer-tracking a three-dimensional pose of a scanning device relative to the three-dimensional object as the three-dimensional pose of the scanning devices changes to measure different contours of the three-dimensional object from different vantage points, and assessing a sufficiency of contour measurements from one or more of the different vantage points based on measurements received from the scanning device. The example method further includes providing haptic feedback, via a haptic output device, indicating the sufficiency of contour measurements corresponding to a current three-dimensional pose of the scanning device.