3D Line Segment Measurement for Lower-Load Dimension Inspection
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Solution Overview
Problem
Existing three-dimensional modeling methods for dimension measurement are burdened by high processing amounts, particularly in construction site inspections where manual measurements are time-consuming and labor-intensive.
Innovation Solution
A dimension measurement method and device that generates a line segment model from multiple images, reducing processing by representing the target area with lines instead of point clouds, allowing for automated dimension calculation using a line segment model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a three-dimensional model is generated using a plurality of images for dimension measurement, then measurement capability is improved, but processing amount increases
Solution Approach 1:
The patent extracts only the essential line segments from the three-dimensional model that are necessary for dimension measurement, rather than processing the entire model. This extraction principle reduces the processing amount by focusing only on the critical geometric features (edges and boundaries) required for accurate dimension calculation, while maintaining measurement capability.
Solution Approach 2:
The patent segments the three-dimensional model into discrete line segments representing edges and boundaries of the target object. By dividing the continuous model into segmented linear elements, the system enables efficient processing for dimension measurement while preserving the geometric information needed for accurate measurements.
2Loss of information
If a full three-dimensional model is created from multiple images, then comprehensive spatial information is obtained, but processing time and computational resources increase
Solution Approach 1:
The patent extracts only the line segments that define the boundaries and edges of the target object from the complete three-dimensional model. This selective extraction preserves the essential spatial information needed for dimension measurement while eliminating redundant data, thereby reducing processing time and computational resource requirements.
3Measurement precision
If detailed three-dimensional modeling is performed using multiple viewpoints, then measurement accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent extracts only the essential line segments from the detailed three-dimensional model obtained through multiple viewpoints. This extraction maintains measurement accuracy by preserving the geometric boundaries and edges while significantly reducing processing complexity by eliminating unnecessary model details.
Solution Approach 2:
The patent segments the detailed three-dimensional model into discrete line segments that represent the edges and boundaries. This segmentation approach maintains measurement precision by preserving critical geometric features while simplifying the overall model structure for easier processing.
Data Source
AI summary
A dimension measurement method includes: extracting a plurality of lines from a plurality of images generated by shooting a target area from a plurality of viewpoints, and generating a line segment model which is a three-dimensional model of the target area that is expressed using the plurality of lines; calculating a dimension of a particular part inside the target area, using the line segment model; and outputting the dimension calculated.