Object visual detection method and device

A visual detection and object technology, applied in the field of visual detection, can solve the problem of high misjudgment of visual detection

Active Publication Date: 2016-10-26
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a method and device for visual detection of an object in view of the problem that the visual detection of objects with similar background colors is more misjudged in the prior art, and the method and device can realize visua...

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
  • Object visual detection method and device
  • Object visual detection method and device
  • Object visual detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] In one of the embodiments, see figure 1 As shown, an object vision detection method includes the following steps:

[0024] S100 obtains the template image of the standard product and the product image of the product to be tested, extracts the template image and the descriptor of the product image respectively, obtains the template image descriptor and the product image descriptor, and compares the template image descriptor and Performing feature matching on the product image descriptor to obtain a matching set;

[0025] S200 performs affine transformation on the product image according to the matching set to obtain the image to be tested;

[0026] S300 obtains the position information of the detection area image in the template image, and determines the to-be-measured area image of the to-be-measured image according ...

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 relates to an object visual detection method and an object visual detection device. According to the method and the device, gradient operation is carried out on a detection region image in a template image and a to-be-detected region image in a to-be-detected image respectively, so that the template histogram comparison factor of the detection region image and the to-be-detected histogram comparison factor of the to-be-detected region image are obtained; histogram comparison is carried out on the template histogram comparison factor and the to-be-detected histogram comparison factor; and whether the to-be-detected region image is consistent with the detection region image can be judged, and visual detection and recognition of a product can be realized. Since direction judgment on whether the images are matched with each other according to the gray values of the to-be-detected region image and the detection region image is avoided, accurate visual detection and recognition of an object of which the color which is close to background color can be still realized; and since the sizes of the detection region image and the to-be-detected region image are smaller than the sizes of the original template image and the original to-be-detected image, the operation efficiency of the gradient operation is high, and the efficiency of visual detection is high.

Description

Technical field [0001] The present invention relates to the technical field of visual inspection, in particular to an object visual inspection method and device. Background technique [0002] At present, template matching algorithms are generally used for visual inspection of objects. For example, during the installation process of the chassis shell on the production line, there may often be missing parts such as screws, terminals, and silk screens. Therefore, in order to avoid missing parts. If the structure of the equipment is loose or even damaged, it is often necessary to visually inspect the location of each part on the chassis to ensure that the product is installed properly. In engineering, when the color of the part is obviously different from the background color of the chassis, the template matching algorithm can generally be used to detect whether the part is missed. However, the template matching algorithm mainly calculates the template image and the image to be match...

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): G06T7/00
CPCG06T7/001
Inventor 邱伟波
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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