Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A laser etching industrial detonator code image positioning and correction method

A coded image and laser etching technology, which is applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problem that the character positioning method cannot achieve good results by laser etching the coded image of industrial detonators, the illumination changes, and the detonator code positioning is not good. Standard and other issues

Inactive Publication Date: 2018-12-11
WUHAN UNIV OF SCI & TECH
View PDF10 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a laser-etched industrial detonator coded image positioning and correction method for the classic character positioning method that cannot achieve good results in the laser-etched industrial detonator coded image
This method can solve the technical problem of inaccurate positioning of laser-etched industrial detonator codes caused by factors such as coded character tilt, illumination changes, random noise, etc. The positioning results of this method are accurate and stable

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
  • A laser etching industrial detonator code image positioning and correction method
  • A laser etching industrial detonator code image positioning and correction method
  • A laser etching industrial detonator code image positioning and correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] figure 1 For the laser etching industrial detonator coding image location and correction method flow chart that the present invention proposes, combine figure 1 The implementation process of the present invention will be described in detail. The size of the coded image of the detonator used in this embodiment is 1080×240.

[0046] Step S1, detonator coded image preprocessing, in order to detect character edges more completely, the present invention performs image enhancement processing on the detonator coded image in the image preprocessing stage;

[0047] Step S11, the image is grayscaled, and the grayscale process adopts the conversion equation from the three primary colors of RGB to grayscale: Gray(i,j)=0.299R(i,j)+0.587G(i,j)+0.114B( i,j), where Gray(i,j) represents the grayscale value of pixel (i,j) after grayscale conversion, R(i,j), G(i,j), B(i,j) respectively Represents the gray value of the pixel (i, j) in the original color image in the three channels of R, ...

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 laser etching industrial detonator code image positioning and correction method is provided. Firstly, the edge information of a preprocessed detonator coded image is detected and binarized by a Sobel operator, and then the rough position of the detonator encoded character is located by the morphological closed operation, then, the binary image after rough positioning is fitted with line segmentsby probabilistic Hough transform, and the tilt angle of detonator coding is estimated, and then the coded image is corrected by rotational transform according to the tilt angle. Finally, the positionof coded characters is located accurately according to the distribution of the fitting line segments in the corrected image, that is to say, precise positioning is realized. This method can solve thetechnical problems of inaccurate positioning of detonator encoding caused by inclination of encoded characters, variation of illumination, random noise and so on, and has high reliability and stability.

Description

technical field [0001] The invention belongs to the field of image processing and pattern recognition, in particular to a laser etching industrial detonator coding image positioning and correction method. Background technique [0002] Detonators are a commonly used detonating material in the industry. In the process of strict control of dangerous goods, as a specific application of Optical Character Recognition (OCR) technology, detonator code recognition is gradually entering the market to replace The traditional manual records its serial number. Detonator code location is a key step in the detonator code recognition algorithm, and its accuracy is directly related to the accuracy of the detonator code recognition results and the real-time performance of the detonator code recognition system. [0003] As a traditional subject in the field of image processing and pattern recognition, character location has achieved many good results in license plate location, natural scene t...

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 Applications(China)
IPC IPC(8): G06K9/46G06K9/38G06K9/40G06K9/32
CPCG06V10/243G06V10/28G06V10/30G06V10/44
Inventor 尹亮徐望明陈光靳晓缘
Owner WUHAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com