3D Point Cloud Workpiece Modeling With Positioned Region Models
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Solution Overview
Problem
Creating a workpiece model based on a point cloud requires complex calculations, which is cumbersome.
Innovation Solution
A processing device and method that includes a screen for displaying a point cloud and an area model, allowing the operator to position and set the area model to surround the point cloud, thereby simplifying the creation of a workpiece model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a workpiece model is created based on a point cloud obtained from a 3D camera, then the model can accurately represent the workpiece geometry, but the process requires complex calculations that are cumbersome and time-consuming
Solution Approach 1:
The patent divides the workpiece model creation process into two distinct parts: (1) obtaining a point cloud of the workpiece using a 3D camera, and (2) manually specifying an area model that surrounds the point cloud. This segmentation separates the automated data acquisition from the simplified manual modeling step, reducing overall complexity while maintaining accuracy.
Solution Approach 2:
The patent introduces an area model as an intermediary element between the raw point cloud data and the final workpiece model. The area model serves as a simplified bounding representation that surrounds the point cloud, acting as a mediator that translates complex point cloud data into an easily manageable model format for robot teaching.
2Extent of automation
If complex calculations are performed to create a workpiece model from point cloud data, then the model can be generated automatically, but the process becomes cumbersome and reduces productivity
Solution Approach 1:
The patent segments the modeling process into automated point cloud acquisition and manual area model specification. This division maintains automation where it adds value (data capture) while eliminating automation in complex calculation steps, thereby improving overall productivity without completely sacrificing automated model generation.
Solution Approach 2:
Instead of performing complete and complex calculations to generate a precise workpiece model from point cloud data, the patent applies partial action by only surrounding the point cloud with a simplified area model. This partial modeling approach sufficient for robot teaching purposes eliminates the need for exhaustive calculations, significantly improving efficiency.
3Ease of operation
If a simplified area model is used to surround the point cloud, then the model creation process becomes easier and faster, but may require manual positioning and adjustment
Solution Approach 1:
The patent enables the area model to self-adjust to the point cloud data. The system automatically positions and sizes the area model based on the detected point cloud, eliminating the need for manual positioning and adjustment by the operator. This self-service capability maintains ease of operation while minimizing time loss.
Data Source
AI summary
A processing device including a measurement point cloud display unit that three-dimensionally displays a point cloud including an object on a screen, a region model display unit that three-dimensionally displays a region model on the screen, a positioning unit that positions the region model by changing the position and the posture of the region model and thereby sets the point cloud of the object so as to be at least partially surrounded by the region model, and a setting unit that sets a region which is within the screen and is surrounded by the positioned region model as the model of the object.