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

Multi-scale presswork defect detecting method based on random forest

A technology of defect detection and random forest, which is applied in image data processing, instruments, calculations, etc., to achieve the effects of fast calculation speed, simplified calculation and rapid detection

Active Publication Date: 2015-06-17
XI AN JIAOTONG UNIV
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In order to overcome the problems existing in the above-mentioned prior art, the object of the present invention is to provide a multi-scale printed matter defect detection method based on random forest, which improves the speed and accuracy of detection; under the premise of not significantly increasing the computational complexity, the detection effect is excellent. Compared with other current printing defect detection algorithms

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
  • Multi-scale presswork defect detecting method based on random forest
  • Multi-scale presswork defect detecting method based on random forest
  • Multi-scale presswork defect detecting method based on random forest

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The invention is a random forest-based multi-scale defect detection method for printed matter. A certain number of qualified printed matter images that have been aligned are input to form a training sample. After the setting of the detection area, the generation of defect detection points and the multi-scale representation of the training sample image , Collect its cross-channel binary features for each defect detection point at each scale, and then train the random forest to generate a random forest defect detection model for each defect detection point at multiple scales; after having the model, given For the test image, first generate a multi-scale representation, and then apply the trained random forest defect detection model at each scale to judge whether there is a defect at the defect detection point, and perform multi-scale screening and synthesis of the defect detection point, and finally generate the detection effect .

[0035] Below in conjunction with embodi...

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 multi-scale presswork defect detecting method based on a random forest comprises the steps that a certain number of aligned and qualified presswork images are input to form training samples; after setting of a detection area, generating of defect detection points and multi-scale expressing of the images of the training samples are conducted, the cross channel binary feature of each defect detection point under each scale is collected, then the random forest is trained, and a random forest defect detecting model for all defect detecting points under multiple scales is generated; after the model is available, a test image is given, firstly, multi-scale expression is generated, whether defects exist at the defect detecting points or not is judged through the trained random forest defect detecting model under all scales, multi-scale screening and composition are conducted on the defect detecting points, and finally a detecting result is formed. By means of the method, the detecting speed is increased, and the detecting precision is improved; under the premise that the calculation complexity is not obviously increased, the detecting effect is superior to the detecting effect of other presswork defect detecting algorithms at present.

Description

technical field [0001] The invention belongs to the technical field of image-based industrial product quality detection in computer vision, and in particular relates to a random forest-based multi-scale defect detection method for printed matter. Background technique [0002] Packaging printed matter is the "appearance" of many industrial products, and the quality of its printing is related to the degree of consumer acceptance of the product. In recent years, with the advancement of production technology and the continuous improvement of people's quality of life, new printing technologies have been applied to many printed products. The quality of printed matter is an important part of product quality. Therefore, higher requirements are put forward for the automation level of printed matter quality management in the production process. It is required to use machines to detect printed matter defects instead of manual work, so as to reduce costs and improve efficiency. [0003...

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): G06T7/00
Inventor 苏远歧王奇陈莉彭立明
Owner XI AN JIAOTONG UNIV
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