Movable Camera Workpiece Edge Detection
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Solution Overview
Problem
Current camera-based systems for measuring workpieces in production machines suffer from time-consuming image processing, leading to significant delays in result presentation and high computational costs, making them inflexible and costly.
Innovation Solution
A method where a camera in a production machine continuously records individual high-resolution camera images, focusing on edge point detection within specific sections of the workpiece, allowing for real-time edge detection and rapid evaluation of edge information for precise workpiece positioning and orientation, using a movable camera to reduce unnecessary image capture and enhance processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If camera systems are used for measuring workpieces, then contactless measurement is achieved, but image processing time and computational costs increase significantly
Solution Approach 1:
The patent divides the workpiece measurement task into multiple sections, with each camera image capturing only a specific section rather than the entire workpiece. This segmentation reduces the amount of image data that needs to be processed while still providing comprehensive measurement coverage through multiple localized images.
Solution Approach 2:
The patent applies different evaluation criteria to different image sections based on their specific characteristics. Each image section is evaluated according to its local features and requirements, optimizing the processing approach for each area rather than applying a uniform processing method to all images.
2Measurement precision
If high-resolution camera images are captured continuously, then measurement precision is improved, but data processing complexity and time increase
Solution Approach 1:
The patent extracts only the essential information from high-resolution camera images, specifically focusing on detecting edge points rather than processing the entire image data. This extraction approach maintains measurement precision by capturing critical geometric features while significantly reducing processing complexity.
Solution Approach 2:
The patent captures more image data than immediately necessary by continuously recording multiple high-resolution images, but then applies selective evaluation only to relevant sections. This allows for high measurement precision through adequate data capture while managing processing complexity through targeted analysis.
3Area of stationary object
If the camera captures the entire working area, then complete workpiece coverage is achieved, but processing time and computational resources increase
Solution Approach 1:
The patent segments the working area into multiple image sections, with each camera capture focusing on a specific portion of the workpiece. This segmentation approach achieves complete coverage through multiple localized images while reducing the processing burden compared to capturing and processing a single large-scale image of the entire working area.
Data Source
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AI summary
The invention is a method for measuring workpieces (30) and a production and/or machine tool (10) operating according to the method, wherein a camera (32) movable in a work space (18) of the production and/or machine tool (10) is assigned to the production and/or machine tool (10) for recording image data in the work space (18) of the production and/or machine tool (10), wherein individual camera images (34) are continuously recorded by means of the camera (32) as it moves in the work space of the production and/or machine tool (10),wherein edge points (36) of a workpiece (30) located in the working area of the production and/or machine tool (10) are determined in the recorded camera images (34) and wherein detected edge points (36) together with a sequential number of the camera image (34) are sent to a control device (20) of the production and/or machine tool (10) for the purpose of identifying the respective workpiece (30) and/or determining the orientation of the respective workpiece (30).