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

A camera-based product color detection method, device and system

A color detection and product technology, applied in the direction of color/spectral characteristic measurement, etc., can solve problems such as slow speed and affect production efficiency, and achieve the effect of overcoming randomness, quantitative automatic detection, and improving accuracy and efficiency

Active Publication Date: 2017-09-22
ALEADER VISION TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, these two methods have relatively large defects: the method of human eye recognition has great uncertainty, and it is difficult to measure the color of the product stably and quantitatively; Seriously affect production efficiency, only random inspection of products can be realized

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 camera-based product color detection method, device and system
  • A camera-based product color detection method, device and system
  • A camera-based product color detection method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 It is a schematic flowchart of a camera-based product color detection method provided by the specific embodiment of the present invention. Such as figure 1 As shown, a kind of camera-based product color detection method of the present invention includes:

[0054] Obtain the conversion relation about RGB-Lab according to the standard color block;

[0055] Measure the RGB value of the standard product, and obtain the Lab value of the standard product according to the obtained RGB-Lab conversion relation;

[0056] According to the obtained Lab value of the standard product, set the upper and lower limits of the Lab value that the product can accept;

[0057] Measure the RGB value of the product to be tested, and obtain the Lab value of the product to be tested according to the conversion relation of RGB-Lab;

[0058] Compare the Lab value of the product to be tested with the upper and lower limits of the Lab value that the product can accept, if it is within the...

Embodiment 2

[0099] The following is the device embodiment of the embodiment of the present invention. The method embodiment and the device embodiment of the present invention belong to the same concept. For details not described in detail in the device embodiment, you can refer to the above method embodiment.

[0100] figure 2 It is a structural schematic diagram of a camera-based product color detection device provided by a specific embodiment of the present invention. Such as figure 2As shown, a camera-based product color detection device according to the present invention includes:

[0101] RGB-Lab conversion relationship acquisition unit, used to obtain the conversion relationship about RGB-Lab according to the standard color block;

[0102] The standard product Lab acquisition unit is used to measure the RGB value of the standard product, and obtain the Lab value of the standard product according to the obtained RGB-Lab conversion relation;

[0103] The Lab upper and lower limit...

Embodiment 3

[0118] The following is the system embodiment of the embodiment of the present invention. The method embodiment and the system embodiment of the present invention belong to the same concept. For details not described in detail in the system embodiment, you can refer to the above method embodiment.

[0119] image 3 It is a structural schematic diagram of a camera-based product color detection system provided by the specific embodiment of the present invention. Such as image 3 As shown, a camera-based product color detection system according to the present invention includes: a camera, a light source, and a stage for placing the product to be tested, and the light source is used to illuminate the product to be tested placed on the stage , the camera is used to take images of the product to be tested under a light source; it also includes a processor connected to the camera for image processing;

[0120] The processor is used to obtain the conversion relational formula about ...

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 relates to a camera-based product color detection method, device and system. The method includes: obtaining a conversion relational expression about RGB-Lab according to a standard color block; measuring the RGB value of a standard product, and obtaining the Lab value of the standard product according to the obtained RGB-Lab conversion relational expression; Lab value, set the upper and lower limits of the Lab value that the product can accept; measure the RGB value of the product to be tested, and obtain the Lab value of the product to be tested according to the conversion relationship of RGB-Lab; compare the Lab value of the product to be tested with the acceptable value of the product Comparing the upper and lower limits of the Lab value, if it is within the acceptable range of the upper and lower limits of the Lab value, it is judged that the color of the product to be tested is qualified, otherwise, the color of the product to be tested is judged to be unqualified. It can be seen that the present invention can realize efficient, stable and quantitative automatic detection of product color, overcome the problems of random detection by human eyes and slow detection speed of colorimeter, and greatly improve the accuracy and efficiency of product color detection.

Description

technical field [0001] The invention relates to the technical field of product quality detection, in particular to a camera-based product color detection method, device and system. Background technique [0002] At present, whether the color of the product meets the requirements of product quality is generally determined by the human eye under a standard light box by comparing the difference between the standard product and the product to be tested. When there is a difference in product color detection, a colorimeter is required. To determine the color model value (hereinafter referred to as: Lab value) of the product color to be tested, and then judge whether the product color is qualified. The standard light box is to provide a standard light source environment for the human eye, which is convenient for the human eye to compare the color difference between the product to be tested and the standard product. The color difference meter uses a silicon photodiode array to measu...

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): G01N21/27
Inventor 王锦峰易群生
Owner ALEADER VISION 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