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

An automatic sensing trigger method and system based on barcode edge segmentation

An automatic sensing and edge segmentation technology, which is applied in the direction of sensing record carrier, electromagnetic radiation sensing, image analysis, etc., can solve the problem of not being able to reduce the interference of external ambient light, and achieve the goal of ensuring constant processing accuracy, high resolution accuracy, and improving impact Effect

Active Publication Date: 2022-04-01
福州图腾易讯信息技术有限公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the calculation of the average gray value in the prior art cannot reduce the interference of external ambient light

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
  • An automatic sensing trigger method and system based on barcode edge segmentation
  • An automatic sensing trigger method and system based on barcode edge segmentation
  • An automatic sensing trigger method and system based on barcode edge segmentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] see figure 2 , an automatic sensing trigger method based on barcode edge segmentation, comprising the following steps:

[0059] S1: Obtain a frame of barcode image and convert it into YUV color coding mode, such as image 3 Shown, where the value of the Y channel is taken as the gray value of the barcode image.

[0060] YUV is a color encoding method that is often used in various video processing components. YUV takes human perception into account when encoding photos or videos, allowing bandwidth reduction for chroma. "Y" means brightness (Luminance, Luma), "U" and "V" are chroma and density (Chrominance, Chroma). Generally, the images captured by camera equipment are in RGB mode, and RGB to YUV mode can be converted directly through commonly used algorithm templates.

[0061] S2: Calculate the average value of the Y channel values ​​of all pixels as the average gray value g of the barcode image of one frame.

[0062] S3: Calculate the difference between the aver...

Embodiment 2

[0083] An automatic sensing trigger system based on barcode edge segmentation, comprising a camera, a memory and a processor, the camera is used to capture images, the memory stores instructions, and the instructions are adapted to be loaded by the processor and perform the following steps:

[0084] The camera acquires a frame of barcode image and converts it into YUV color coding mode, where the value of the Y channel is taken as the gray value of the barcode image.

[0085] Calculate the average value of the values ​​of the Y channels of all pixels as the average gray value g of the one frame of barcode image.

[0086] Calculate the difference between the average gray value g of the barcode image of one frame and the average gray value g' of the decoded barcode image in the previous frame, and compare it with the first threshold T1, when the difference between the average gray value does not exceed the first When the threshold T1 is reached, no decoding is triggered; when th...

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 automatic induction trigger method based on barcode edge segmentation and its system, which acquires a frame of barcode image in YUV coding mode, calculates the difference between its average gray value and the average gray value of the decoded image of the previous frame, and Compared with the first threshold T1, if the difference does not exceed the first threshold T1, decoding will not be triggered, otherwise, the current image will be further processed for edge segmentation, and the white pixels after the barcode edge segmentation processing between the current image and the previous image will be calculated The ratio of the absolute value of the difference between the numbers to the current image, if the ratio does not exceed the third threshold T3, the automatic sensing is not triggered; otherwise, the automatic sensing is triggered to perform the decoding operation.

Description

technical field [0001] The invention relates to an image automatic induction trigger method and system thereof, in particular to an automatic induction trigger method and system based on barcode edge segmentation. Background technique [0002] A barcode is composed of bars and spaces with different widths and different reflectivities, compiled according to certain coding rules (code system), and is used to express a set of graphic identifiers of numeric or alphabetic symbol information. In order to read the information represented by the barcode, a barcode recognition system is required, which consists of a barcode scanner, an amplifying and shaping circuit, a decoding interface circuit, and a computer system. gun or barcode reader) to scan to obtain a set of reflected light signals, which are transformed into a set of electronic signals corresponding to lines and blanks after photoelectric conversion, and are restored to corresponding alphanumeric numbers after decoding, an...

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): G06K7/14G06T7/12G06T7/13G06T7/136G06T7/194
CPCG06K7/1452G06T7/12G06T7/13G06T7/136G06T7/194
Inventor 宋少龙上官文娟
Owner 福州图腾易讯信息技术有限公司
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