Battery screen printing quality detecting method based on block template matching

A quality inspection method and template matching technology, applied in sorting, measuring devices, analyzing materials, etc., can solve problems such as high prices

Active Publication Date: 2018-08-03
XI AN JIAOTONG UNIV +1
View PDF6 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current research on silk screen defect detection algorithms is focused on the recognition rate and stability of the algorithm, and the real-time detection is taken as a secondary consideration, resulting in many excellen

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
  • Battery screen printing quality detecting method based on block template matching
  • Battery screen printing quality detecting method based on block template matching
  • Battery screen printing quality detecting method based on block template matching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The detection method proposed by the present invention is a detection method based on template matching, so the system needs a template before the battery screen printing detection. Because there are many types and models of batteries, the creation of detection templates needs to be specific to specific models. The creation of the template includes two aspects, that is, the creation of the template image and the creation of the configuration file. The color difference of each part in the global image can be obtained by using the color difference detection algorithm. At the same time, it can also be averaged to observe the global chromatic aberration.

[0073] see Figure 8 , the creation of the template image:

[0074] Select a flawless battery to collect its image, and then use the automatic threshold method on the image to separate the battery from the background, and then perform tilt correction and cropping on the battery image. All printed content must be includ...

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 invention discloses a battery screen printing quality detecting method based on block template matching. Original images of batteries are acquired to build a template data set; images of the batteries are corrected; the corrected images of the batteries are tailored; detecting areas are extracted to reduce information redundancy; battery screen printing images are cut from battery backgrounds;a battery screen printing position is determined; block matching is performed on images to be detected by using block template images in the template data set to judge the matching degree between images of the batteries to be detected and templates; block sub images of the batteries to be detected are compared with built template sub images one by one; difference results are analyzed to obtain battery screen printing defect information; aberration quantitative analysis is performed on each sub image to obtain aberration conditions of each part in global images; and meanwhile, average processing is performed to observe global aberration conditions to finish the battery screen printing quality detection. The method needs no manual intervention, and can realize quick high-precision battery screen printing quality detection.

Description

technical field [0001] The invention belongs to the technical field of machine vision automatic surface detection, and in particular relates to a battery silk screen quality detection method based on block template matching. Background technique [0002] The screen printing of the test battery is an important step in the battery assembly process. Different types of batteries have differences in character types (Chinese characters, Korean, English, numbers, etc.), character formats, illustration content, and barcode formats. At present, the screen printing of battery cells is affected by fixtures, equipment, personnel and other related factors to cause printing defects. The types of screen printing defects are mainly divided into: silk screen defect / skew / fuzzy / ghosting / dirty / chromatic aberration, screen printing and barcode information do not match, and screen printing position is wrong. Comply with specifications etc. At present, battery manufacturers mainly rely on artific...

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): B07C5/34G01N21/956G01N21/88
Inventor 李兵赵卓高飞陈磊辛美婷郭庆明
Owner XI AN JIAOTONG UNIV
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