Two-dimensional Code Recognition Research Articles

Application of QR Code Online Testing Technology in Nursing Teaching in Colleges and Universities

In view of the current situation that the nursing teaching content is lacking pertinence and cannot effectively cultivate students’ critical thinking, this paper puts forward the application analysis of two-dimensional code online testing technology in nursing teaching in colleges and universities. Through the analysis of two-dimensional code recognition technology architecture and common application fields, an intelligent nursing teaching platform for two-dimensional code online testing technology was designed. Systematically, we summarize the advantages of intelligent nursing teaching platform, use flash and 3D technology to complete the virtualization of nursing teaching scene, and use XML technology to update and save teaching resources; we further build an intelligent nursing teaching platform by using the basic plate, nursing station plate, ward plate, dispensing room plate, and case and operation review plate. The experimental results show that under the two-dimensional code online test technology, the nursing teaching method in colleges and universities has strong teaching resource processing efficiency, improves the operation level of students’ nursing technology, and effectively cultivates the academic thinking of nursing students, which is of great significance to the progress of nursing teaching.

Smart image recognition system based on machine vision

This paper proposes an efficient and accurate method of two-dimensional code recognition for industrial actual projects, and develops a high-speed and batch two-dimensional code recognition system based on machine vision. Firstly, according to the position of the QR code in the target subspace, a method to locate the region of interest of each QR code by using geometric relationship and batch processing QR code is proposed. On this basis, Gaussian noise is added to simulate the possible noise in production practice, and the anti-noise ability of the system is evaluated. Finally, the relationship between system recognition rate and QR code movement speed is analyzed and the experimental results are compared. The experimental results show that the system can meet the requirement of real-time online detection.

Design of Face QR Code Recognition System based on PCA

This article discusses the face two-dimensional code recognition technology, using the PCA algorithm to study the dimensionality reduction processing process of the face image. Based on the analysis of QR encoding and decoding methods, the generation of face two-dimensional codes is realized. Choose 140 pictures in ORL face database as the experimental data set, study the face two-dimensional code recognition system, and realize a process of face recognition. The experimental results show that the face image data has a large dimension, and the principal component analysis method can be used to obtain the key data. Through the experiment, PCA can be used to reduce the dimensionality to obtain the effective information of the face, and to encode and decode the two-dimensional code. The ZXing two-dimensional code open source library called by the experiment has high experimental efficiency, which is beneficial to improve the operating efficiency of face two-dimensional code recognition and facilitate the machine to complete the simulation.

Indoor positioning and navigation based on two‐dimensional code and database

Combining two-dimensional code recognition technology with database technology, indoor location and navigation methods which are not easy to be interfered by other signals and have low cost are studied, and indoor location and navigation system based on two-dimensional code and database is designed. The research results show that the two-dimensional code recognition technology and database technology can achieve efficient and precise indoor location and navigation, and improve the efficiency and reduce the efficiency.

Study on two-dimensional code recognition algorithm in non-uniform illumination based on digital images processing technology

It is possible that the shaded area was mistakenly identified based on digital images processing technology with non-uniform illumination. The binarization algorithm of two-dimensional code was optimized to this problem. The local area threshold of the image and the pixel-by pixel sliding calculation are used to eliminate the influence of the illumination on the image, thereby improving the recognition rate of the two-dimensional code image which contains the shadow. Experimental result indicate that the method has a stronger adaptability to images with shaded areas, especially for unilateral shadows which are less ideal for block resolution. Compared with the classical global Ostu algorithm, the recognition rate of the image is increased by about 3 times.

基于神经网络的二维码识别算法

基于神经网络的二维码识别算法

An Error-Detecting System of Books Based on Two-Dimensional Code Scanning

In order to improve the management of modern large library, an automatic system is needed to arrange the books. The system uses two-dimensional code recognition technology and microcontroller control technology to achieve the efficient management of library. We choose STC89C52 chip as the core controller and the scanning module in the HR-200 laser two-dimensional code scanner as the external communication port. Data is transmitted by serial communication interface between them. By scanning the two-dimensional code on the books and shelves, we can quickly find out the books in wrong position. In this way we can enhance the efficiency of books management obviously. In comparison with the experimental results, the feasibility and rationality of the design are validated as well as the practicability of the system.

On Applications of Cell Phone Two-Dimensional Code in China

Cell phone two-dimensional code is the product of the combination of the two-dimensional code technology and mobile terminal cell phone, applied to give full play to the superiority of the two-dimensional code recognition technology with the convenience of mobile cell phone use. With the upgrading of Chinese communication network, the popularity of smart cell phones as well as the change of people's lives concept in recent years, the range of applications of the two-dimensional code has been increasingly wider. The paper makes analyses on the classification application of the two-dimensional code in China and at the same time explores a number of constraints existing in its development cause in China, and then it puts forward development strategies of the cell phone two-dimensional code applications in Chinese market and provides a reference to its popularity and application.* Mengdi Chen is the first author; Luling Liu is the correspondence author; Bin Huang is the instructor.

Design and implementation of two-dimensional code recognition system in mobile phone

Based on the research of two-dimensional code and recognition of mobile phone,the authors have developed a two-dimensional code recognition system on Android platform.In the system architecture design,the two-dimensional code recognition system platform support layer,client application layer,cloud handle layer were hierarchically designed to ensure the system security.According to the requirements,the system function models and cases analyses were given.Finally,the two-dimensional code core encode and decode functions of mobile phone were achieved.