Supercharge Your Innovation With Domain-Expert AI Agents!

Edge inflection point detection method and detection device based on shape fitting

A detection method and detection device technology, applied in image data processing, instruments, calculations, etc., can solve the problems of algorithm missed detection, multiple detection, errors, etc., and achieve the effect of strong robustness and improved accuracy

Active Publication Date: 2018-08-28
TSINGHUA UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inflection point detection algorithm in the related art itself has certain limitations, such as the inflection point at the junction of a line segment and an arc. arc, this type of algorithm will easily bring multiple detections (that is, the algorithm mistakenly detects a non-inflection point as an inflection point), making it difficult for this type of algorithm to obtain ideal results in industrial detection

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
  • Edge inflection point detection method and detection device based on shape fitting
  • Edge inflection point detection method and detection device based on shape fitting
  • Edge inflection point detection method and detection device based on shape fitting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the present invention, unless otherwise clearly specified...

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

The present invention discloses an edge inflection point detection method based on shape fitting. The method comprises the following steps: capturing a printing image; through contour detection, acquiring an edge curve of the printing image; according to the preset printing image, performing shape detection on the edge curve through shape fitting so as to detect a basic shape of the longest section behind each pixel point; and according to the basic shape of the longest section behind each pixel point, obtaining an edge inflection point. According to the detection method provided by an embodiment of the present invention, by detecting the edge inflection point through shape fitting, accuracy of detection is improved and meanwhile stronger robustness can be provided. The present invention further discloses an edge inflection point detection apparatus based on shape fitting.

Description

technical field [0001] The invention relates to the technical fields of computer vision and industrial detection, in particular to an edge inflection point detection method and detection device based on shape fitting. Background technique [0002] Effective quality inspection of industrial production results (especially printed matter such as PCB) has always been a concern of the industry and academia, because there will inevitably be errors in actual production, and if unqualified products enter actual use, it may cause serious damage to users or The loss caused by the enterprise itself may be even greater in some key areas. Due to its advantages of low cost and high efficiency, industrial inspection technology based on machine vision has received more and more attention and application in the industry. For the quality inspection of printed matter with high precision requirements, one of the basic steps is to detect the inflection point on the edge of the ideal printed ima...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/13
CPCG06T7/0004
Inventor 戴琼海吴立威刘烨斌
Owner TSINGHUA UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com