2-dimensional bar code

The 2-dimensional bar code collecting system can make sure veracity in the process of collect data and renew data. At the same time, it can resolve problem of renew data at manage medium equipments and support information solid hour renew.

采用二维条形码数据采集系统，确保了信息的采集及维护更新的准确性，解决了维护管理中设备及维护信息实时更新的问题。

Research on the Application System for Integrated Technique with 2-Dimensional Bar Code and GIS in Environmental Monitoring

二维条码和GIS联合技术在环境监测中的应用系统研究

Application of the Digital Watermarking Technique in 2-D Bar Code Certificate Anti-Counterfeit Systems

数字水印技术在二维条码证件防伪中的应用

Bianry image; 2-dimensional bar code Preprocessing Method Based on PDEs

图像二值化；基于PDEs的二维条形码图像预处理方法

Image Recognition in 2-D Bar Code Based on QR Code

QR Code二维条形码的图像识别

Enterprise commercial bar code responsibility system see Figure 2.

企业商品条码责任制参见图2.