Introduction

Many documents that will be to be in an electronic format processed contain barcodes to encode important info that is taken out via barcode decode software. There are really a number regarding issues that should be considered when choosing a barcode symbology. The biggest distinguishing characteristic to become considered is usually whether a geradlinig (1D) or a couple of Dimensional (2D) symbology is to turn out to be employed. 1D symbologies, as the name signifies, typically consist associated with width modulated watering holes and spaces of which encode the person info. There is simply no information contained in the particular vertical dimension associated with a 1D symbol. 2D symbologies encode information in equally dimensions of the symbol and thus, need much higher information density. 2D icons typically use some sort of regular grid of possible cell opportunities, in which a cell is either black or white.

This post will emphasis on the employ of 2D icons in document processing applications as a result of significant data density edge of 2D icons over 1D emblems. In particular, we will compare typically the relative merits associated with three popular community domain 2D symbologies: Data Matrix, QR Code and Tiny QR Code. Pursuing the brief overview of each symbology, we all will compare these people based on their particular data density, mistake correction, and relative processing speed.

Data Matrix

Data Matrix symbols use the regular array associated with square cells starting in size from your 10 by 10 grid up to be able to a 144 by simply 144 grid. A 1 cell peaceful zone is needed throughout the entire image. Additionally , rectangular sizes may also be available. Every symbol consists associated with a fixed "L" pattern that is definitely used for finding together with a clock track along the particular opposite sides associated with the "L". In addition , there are inner clock tracks regarding larger Data Matrix. These fixed places tend not to encode virtually any information. They may be provide to identify typically the symbol as a Data Matrix and to aid typically the decode software. The remaining grid places contain either the black or white squares depending about the information to become encoded.

QR Computer code

QR Code signs also employ the regular variety of sq cells ranging within size from a new 21 by 21 years old grid up to a 177 simply by 177 grid. A 4 cell quiet zone is needed across the entire mark. To help finding, QR Code symbols consist of 3 finder styles at 3 of the 4 sides. In addition, you can find internal alignment patterns, clock patterns, in addition to format information on larger symbols of which gives how big typically the code.

For files applications that need smaller sized amounts of files, there is a new derivative version involving QR Code named Micro QR Code which can encode up to 35 numeric digits inside less space compared to a corresponding QR Code. They have four different square dimensions: 11 by 14, 13 by 13, 15 by 15 and 17 back button 17. Each dimensions requires a 2 cell quiet area around the whole symbol. It is made up of only 1 locater pattern, with minimal clock pattern plus format information.

Files Density and Error Correction

Data Matrix has an obvious data density edge over QR Code. This is also true for smaller amounts of user data. Verfahrensdokumentation Vorlage for this is the fact that it has less fixed cell places. It does not necessarily devote the maximum amount of space for finder patterns, and contains zero format information. Micro QR Code was designed to address the data density issue plus is comparable inside of size to typically the Data Matrix intended for this data content material.