Enhanced edge detection tool for edges of irregular surfaces

A tool and edge technology, applied in the field of enhanced edge detection tools, can solve problems such as difficulty in determining precise contours and/or positions, reduction of contour accuracy and resolution on edges, and edge contour distortion

Active Publication Date: 2014-10-01
MITUTOYO CORP
View PDF15 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, however, this distorts or "smooshes" the edge contours in the point cloud data, reducing the accuracy and resolution of the contours on the edges
As a result, for certain types

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Enhanced edge detection tool for edges of irregular surfaces
  • Enhanced edge detection tool for edges of irregular surfaces
  • Enhanced edge detection tool for edges of irregular surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] A method for enhanced edge detection of edges of irregular surfaces in a machine vision inspection system is disclosed herein. The machine vision inspection system may include an edge feature video tool comprising a region of interest defining portion, wherein the edge feature video tool is configured to determine profile data of edge features in the region of interest based on a plurality of differently focused images of the region of interest . The method includes positioning a workpiece within a field of view of a machine vision inspection system, manipulating an edge-featured video tool, and defining a video tool region of interest that includes edge features in an acquired image of the workpiece. manipulating the edge feature video tool to analyze the image data of at least one image of the workpiece in the region of interest to provide alignment compensation with reference to the edge substantially minimizing the offset of the edge feature at various locations alo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method is provided for enhancing edge detection for edges of irregular surfaces in a machine vision inspection system. The inspection system comprises an edge feature video tool configured to determine profile data for an edge feature based on a plurality of differently focused images. An edge-referenced alignment compensation is provided related to substantially minimizing a respective offset amount of the edge feature at respective locations along a directional filtering direction used for directionally filtering the plurality of differently focused images prior to determining the profile data for the edge feature. In some embodiments, the plurality of differently focused images may be directionally filtered using a directional filtering sub region (DFS) defined relative to a point corresponding to a PFF basis pixel location in each of the plurality of images, each DFS having a relatively longer dimension along the directional filtering direction.

Description

technical field [0001] The present invention relates to an enhanced edge detection tool for irregular surface edges. Background technique [0002] Precision machine vision inspection systems (or simply "vision systems") can be used to obtain precise dimensional measurements of inspected objects, and to inspect a variety of other object characteristics. Such systems can include computers, cameras and optics, as well as precision tables that can move in multiple directions to allow workpiece inspection. An exemplary prior art system, which may be referred to as a general-purpose "offline" precision vision system, is the QUICK PC-based vision system available from Mitutoyo America Corporation (MAC), located in Aurora IL. series, and software. QUICK is generally described in, for example, the QVPAK3D CNC Vision Measuring Machine User Guide, published January 2003, and the QVPAK3D CNC Vision Measuring Machine Operating Guide, published September 1996. Vision System Series ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01B11/24
CPCG06T7/0004G06T7/0085G06T2207/10016G06T2207/30164G06T7/13
Inventor R·K·布里尔
Owner MITUTOYO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap