Two-Surface Angle Measurement Using 3D Plane Fitting
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Solution Overview
Problem
Conventional borescope software is ineffective in accurately determining the angle of deflection between bent or curled surfaces, such as turbine blades, as it relies on angle measurements between line segments which fail to represent the rounded nature of these surfaces accurately.
Innovation Solution
Utilizes 3D surface data from structured light or stereoscopic image acquisition to determine planes of best fit on the surfaces, allowing for precise angle measurements between these planes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional borescope software uses line segments to measure angles, then the measurement process is simple, but the accuracy is poor for rounded or curled surfaces
Solution Approach 1:
The patent transitions from two-dimensional line segment measurements to three-dimensional plane measurements. By using 3D surface data and fitting planes to the surface points, the system can accurately measure angles between surfaces even when they are rounded or curled, resolving the contradiction between measurement accuracy and system complexity.
Solution Approach 2:
The patent replaces the mechanical/conventional approach of using line segments with a computational geometry approach using 3D point cloud data and plane fitting algorithms. This substitution enables accurate measurement of complex surface geometries that were previously impossible to measure accurately with conventional methods.
2Measurement precision
If 3D surface data is used to determine planes of best fit, then angle measurement accuracy improves, but data processing complexity increases
Solution Approach 1:
The patent extracts and processes only the necessary 3D surface data points relevant to the measurement region. By selectively processing surface points within the area of interest rather than the entire surface, the system reduces data processing complexity while maintaining measurement accuracy.
Solution Approach 2:
The patent performs preliminary plane fitting calculations before final angle determination. By pre-processing the 3D surface data to establish reference planes, the system simplifies subsequent angle measurement calculations and reduces overall processing complexity.
Data Source
AI summary
A method can include receiving data characterizing a two-dimensional image of an asset including a first surface and a second surface and a set of three-dimensional surface points characterizing the asset. Each point in the set of three-dimensional surface points can be associated with a pixel of a plurality of pixels in the two-dimensional image. The method can also include generating a graphical user interface (GUI) including at least one of the two-dimensional image and a three-dimensional point cloud view of the asset. The method can include determining a first plane and a second plane associated with pixels of the two-dimensional image. The method can also include determining an angle between the first plane and the second plane and providing the angle via the GUI. Related systems and apparatuses are also provided.