A method for locating multiple barcodes

A positioning method and barcode technology, applied in the field of image processing, can solve problems such as not easy to distinguish, and achieve the effect of low price, high efficiency, and low configuration level

Inactive Publication Date: 2018-12-28
SOUTH CHINA UNIV OF TECH
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is roughly manifested in the following aspects: First, the algorithm is easy to mix with the background in a more complex backgroun

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 method for locating multiple barcodes
  • A method for locating multiple barcodes
  • A method for locating multiple barcodes

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example

[0048] like figure 1 Shown is a specific flow chart of a barcode positioning method based on image edge detection features. The steps of the method include:

[0049] (1) Preprocess the detected image to obtain a binarized image.

[0050] The preprocessing step in the step (1) specifically includes:

[0051] 1) Use the color gamut conversion of the weighted average method to change the image from a color image to a grayscale image;

[0052] 2) Denoising the obtained grayscale image through Wiener filtering;

[0053] 3) The Otsu method (big law) is selected as the threshold value processing method, and the grayscale image is further converted into a binarized image.

[0054] The black and white binary image obtained after image preprocessing is as follows: figure 2 shown.

[0055] (2) Perform edge detection on the circumscribed rectangles in the binarized image to obtain the positions of multiple rectangles;

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 multi-bar code positioning method, which comprises the following steps: (1) preprocessing the detected image to obtain a binary image; (2) edge detection is performed on theexternal rectangles in the binary image to obtain positions of a plurality of rectangles; (3) judging by the bar code, selecting the rectangle which meets the conditions; (4) determining the angle ofthe smallest circumscribed rectangle and correcting the angle to realize the upright of the bar code; (5) sorting the upright rectangles of the bar codes, obtaining a plurality of sorted rectangular regions containing the bar codes under the condition that the bar code system is consistent, and completing the positioning of the bar codes. The invention can obtain the positioning of a plurality ofbar codes in one measurement, can greatly speed up the whole logistics speed, and thus achieves the purpose of improving the efficiency.

Description

technical field [0001] The invention relates to the field of image processing such as positioning, cutting and angle rotation of a plurality of barcodes in an image, and in particular relates to a multi-barcode positioning method. Background technique [0002] Today, with the rapid development of the logistics industry, the design of express orders has been improved to varying degrees according to various needs. However, due to the lack of national standards, the styles of express orders of each logistics company are different, and the specifications are very different. Among them Including the difference in barcode position, aspect ratio and barcode length. [0003] Image processing technology has been applied since the 1950s, and has penetrated into every aspect of daily life. The content of image technology is very rich, including image acquisition, image coding and compression, image storage and transmission, image transformation, image synthesis, image enhancement, ima...

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): G06K7/14
CPCG06K7/1443G06K7/1452
Inventor 谢巍刘希张浪文
Owner SOUTH CHINA UNIV OF TECH
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