Unlock instant, AI-driven research and patent intelligence for your innovation.

Image recognition-based location method for bar code area

A technology for regional positioning and image recognition, applied in the field of barcodes, can solve the problems of complexity, long running time and low positioning accuracy, and achieve the effect of accurate positioning, reducing processing time and saving computing time.

Active Publication Date: 2015-06-03
AEROSPACE INFORMATION
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing barcode area positioning algorithms are relatively complicated, and the running time is long, and the positioning accuracy is not high.

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
  • Image recognition-based location method for bar code area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] figure 1 It is a flowchart of an image recognition-based barcode area positioning method according to an embodiment of the present invention. As shown in the figure, the barcode area positioning method includes the following steps:

[0026] S110, image format conversion, if the format of the image captured by the image acquisition device is inconsistent with the set format, convert the image format to the set format;

[0027] For example...

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 an image recognition-based location method for a bar code area. The image recognition-based location method comprises the following steps of preprocessing an acquired image, computing the blur degree and the contrast of the image, judging whether the blur degree and the contrast are within corresponding threshold ranges or not, and adjusting the image if a judging result is no; performing erosion and dilation operation on the image, and removing an object which is smaller than a set structural element in the image, and performing binarization processing on the image to obtain a binary image; computing convex hulls of the binary image to obtain all points of the outermost layer in the binary image; screening all the points of the outermost layer, and performing polygonal approximation on the screened points to obtain the located bar code area.

Description

technical field [0001] The invention relates to the technical field of barcodes, in particular to a barcode area positioning method based on image recognition. Background technique [0002] At present, bar code technology has been widely used in transportation, retail, product manufacturing, invoice anti-counterfeiting inspection and other fields due to its characteristics of accuracy, speed, convenience and economy, and its development is very rapid. Its use has greatly shortened the time of data collection and information processing, improved work efficiency, and made great contributions to the scientific and modernization of management. However, the two-dimensional barcode images collected in real life often encounter various problems such as uneven light and shade, complex and diverse shooting angles, difficult to distinguish background patterns, stained barcodes, and folded barcodes. When recognizing such images, the barcode recognition time is often prolonged because ...

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): G06K7/10G06K9/32G06K9/60
Inventor 陈懿袁俊玲高志刚孟繁杰王乾王明屈国锋
Owner AEROSPACE INFORMATION