摘要
条码具有成本低、信息可随载体移动等优点。一维条码所表示的信息量有限,且不具备纠错功能。近几年刚刚发展起来的二维条码弥补了这一不足,具有不依赖于数据库和计算机网络、保密防伪性能强等优点,正在被应用于多个领域。论述一维码和二维码的基本特点和编码原理以及他们的应用前景。
Bar code is famous for its merits such as low cost, removability of information with its carrier,etc.One-dimensional code is limited in its finite quantity of information,deficiency of error correcting ability,etc. Two-dimensional code makes up the drawback.It has no dependency on data base and computer net, and is difficult to be faked. So it is widely used in many fields increasingly.In this paper, I mainly canvass two-dimensional code,makes discuss the characters, the principle of its coding and decoding ,and the foreground of its application.
出处
《应用科技》
CAS
2002年第11期11-13,共3页
Applied Science and Technology
关键词
条形码
信息量
准确度
一维码
二维码
编码原理
纠错功能
解码原理
bar code
module
message measure
accuracy
one-dimensional code
two-dimensional code
coding
decoding
