3D Surface Data Quality Overlay for Video Inspection
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Solution Overview
Problem
Video inspection devices lack an indication of the quality of three-dimensional data for surface points, leading to inaccurate measurements due to unclear availability and accuracy of coordinates, which can result in delayed processes or inability to perform measurements.
Innovation Solution
A method and device that display overlays on image pixels to indicate the predicted accuracy or availability of three-dimensional coordinates, allowing operators to identify areas with unacceptable accuracy or unavailable data, thereby ensuring accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If video inspection device obtains three-dimensional coordinates of surface points, then dimensional measurements of irregularities can be performed, but there is no indication of the quality or accuracy of those coordinates leading to potential measurement errors
Solution Approach 1:
The system provides feedback by displaying quality indicators (overlays) on the two-dimensional image that show the accuracy or availability of three-dimensional coordinates for each pixel. This allows operators to see which areas have reliable data and which do not, enabling informed measurement decisions.
Solution Approach 2:
The patent introduces an intermediary quality indicator layer that mediates between the raw three-dimensional coordinate data and the operator's measurement decisions. The overlay system acts as a mediator that translates complex coordinate quality metrics into visual cues that operators can easily interpret.
2Productivity
If operator places cursor in area without accurate three-dimensional coordinates, then measurement process continues, but measurement accuracy deteriorates or process is delayed
Solution Approach 1:
The system performs preliminary assessment of coordinate quality before measurements are taken. By displaying quality indicators in advance, operators can identify suitable measurement areas beforehand, preventing wasted time on inaccurate measurements and ensuring high-quality data collection from the start.
Solution Approach 2:
Real-time feedback through quality overlays guides operators to select only those areas with sufficient coordinate accuracy for measurement, thereby maintaining high measurement precision while optimizing the inspection workflow efficiency.
3Measurement precision
If operator must re-perform inspection to obtain accurate three-dimensional data, then measurement accuracy improves, but inspection time increases
Solution Approach 1:
The quality indicator system performs preliminary evaluation of data quality during the initial inspection, allowing operators to identify areas with insufficient coordinate accuracy. This enables targeted re-inspection of only problematic areas rather than requiring complete re-inspection, thus maintaining measurement accuracy while minimizing time loss.
Solution Approach 2:
The system allows operators to discard images or measurement data with insufficient quality indicators and recover by capturing additional images only in those specific problematic areas, rather than discarding and re-capturing entire inspection datasets.
Data Source
AI summary
A method and device for displaying an indication of the quality of the three-dimensional data for a surface of a viewed object are disclosed, wherein overlays are displayed on pixels of an image corresponding to surface points, indicating the predicted accuracy or availability of the three-dimensional coordinates of those surface points.