The scanning and recongnition of two-dimensional
barcode
Author: Lan Honglin Tutor: Li Fuping
Abstract
One-dimension barcode is widely used recent years in all aspect of life, which greatly
improved the productivity. However, the faults of 1-D barcode have become increasingly
apparent, the information storage of it is so little, and also it must be rely on database.
Two-dimension barcode has the characteristics of high capacity, high density, high security
and good error correction ability, which make it play more and more important role in
information and automation field. QRCode(Quick Response Code), as a 2-D barcode,
develops rapidly in Chinese speaking countries with its unique advantages. At present, in our
nation, recognition of QRCode mostly bases on PC, and the recognition speed and accuracy
are not so good. Moreover, the popular barcode recognition software on android platform has
some shortcomings prevalently, such as slow speed of recognition, etc.
The development of the software is based on Android platform by object-oriented
programming method under the Windows OS. Firstly, this paper describes the detailed
demand analysis to draw use case diagram and activity diagram. Then constructing the system
function model in general design, meanwhile, designing the details of diagram process.
Finally, the software implements the scanning and recognition of two-dimensional barcode by
decoding and testing, after that, this software has robust applicable ability.
Key words: Two-dimensional barcode;QRCode;decoding;Android
