An assessment of 2D Bar codes in Document Processing Apps
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Introduction
Several documents that happen to be to be in electronic format processed contain bar codes to encode information that is removed via barcode decode software. There are a number of issues that should always be considered when choosing a barcode symbology. The largest distinguishing characteristic to be considered is usually whether a step-wise (1D) or 2 Dimensional (2D) symbology is to turn out to be employed. 1D symbologies, since the name implies, typically consist of width modulated discos and spaces of which encode the person info. There is zero information presented in the particular vertical dimension regarding a 1D mark. 2D symbologies encode information in each dimensions of the symbol and thus, have much higher data density. 2D icons typically use a regular grid regarding possible cell roles, where a cell is certainly either black or even white.
This post will focus on the work with of 2D signs in document control applications because of the substantial data density edge of 2D symbols over 1D symbols. In particular, many of us will compare the particular relative merits regarding three popular general public domain 2D symbologies: Data Matrix, QR Code and Micro QR Code. Following a brief overview regarding each symbology, all of us will compare these people based on their own data density, problem correction, and relative processing speed.
Files Matrix
Data Matrix symbols use the regular array involving square cells which range in size from a 10 by ten grid up to be able to a 144 simply by 144 grid. The 1 cell quiet zone is essential throughout the entire mark. Additionally , rectangular dimensions may also be available. Every symbol consists associated with a fixed "L" pattern that will be used for locating alongside with a clock track along typically the opposite sides involving the "L". Additionally , there are internal clock tracks regarding larger Data Matrix. These fixed areas usually do not encode virtually any information. They can be provide to identify typically the symbol as the Data Matrix in addition to to aid the particular decode software. The remaining grid places contain either a new black or bright squares depending on the information being encoded.
QR Signal
QR Code symbols also employ some sort of regular assortment of sq . cells ranging in size from some sort of 21 by 21 years old grid up in order to a 177 by simply 177 grid. The 4 cell calm zone is necessary around the entire image. To assist finding, QR Code symbols have 3 finder patterns at 3 of the 4 corners. In addition, there are internal alignment designs, clock patterns, along with format information in larger symbols that will gives how big is typically the code.
For info applications that want smaller amounts of files, there is a new derivative version of QR Code named Micro QR Signal which can encode up to thirty five numeric digits within less space compared to a corresponding QR Code. They have four different square sizes: 11 by eleven, 13 by tough luck, 15 by fifteen and 17 a 17. Each size requires a 2 cell quiet region around the whole symbol. It is made up of only 1 locater pattern, with limited clock pattern in addition to format information.
Files Density and Problem Correction
Data Matrix has an obvious data density advantage over QR Code. This is especially true for more compact levels of user data. Verfahrensdokumentation Vorlage for this is the fact of which it has fewer fixed cell places. It does not devote the maximum amount of area for finder patterns, and contains simply no format information. Mini QR Code was created to address the files density issue and even is comparable inside size to typically the Data Matrix regarding this data content.
Several documents that happen to be to be in electronic format processed contain bar codes to encode information that is removed via barcode decode software. There are a number of issues that should always be considered when choosing a barcode symbology. The largest distinguishing characteristic to be considered is usually whether a step-wise (1D) or 2 Dimensional (2D) symbology is to turn out to be employed. 1D symbologies, since the name implies, typically consist of width modulated discos and spaces of which encode the person info. There is zero information presented in the particular vertical dimension regarding a 1D mark. 2D symbologies encode information in each dimensions of the symbol and thus, have much higher data density. 2D icons typically use a regular grid regarding possible cell roles, where a cell is certainly either black or even white.
This post will focus on the work with of 2D signs in document control applications because of the substantial data density edge of 2D symbols over 1D symbols. In particular, many of us will compare the particular relative merits regarding three popular general public domain 2D symbologies: Data Matrix, QR Code and Micro QR Code. Following a brief overview regarding each symbology, all of us will compare these people based on their own data density, problem correction, and relative processing speed.
Files Matrix
Data Matrix symbols use the regular array involving square cells which range in size from a 10 by ten grid up to be able to a 144 simply by 144 grid. The 1 cell quiet zone is essential throughout the entire mark. Additionally , rectangular dimensions may also be available. Every symbol consists associated with a fixed "L" pattern that will be used for locating alongside with a clock track along typically the opposite sides involving the "L". Additionally , there are internal clock tracks regarding larger Data Matrix. These fixed areas usually do not encode virtually any information. They can be provide to identify typically the symbol as the Data Matrix in addition to to aid the particular decode software. The remaining grid places contain either a new black or bright squares depending on the information being encoded.
QR Signal
QR Code symbols also employ some sort of regular assortment of sq . cells ranging in size from some sort of 21 by 21 years old grid up in order to a 177 by simply 177 grid. The 4 cell calm zone is necessary around the entire image. To assist finding, QR Code symbols have 3 finder patterns at 3 of the 4 corners. In addition, there are internal alignment designs, clock patterns, along with format information in larger symbols that will gives how big is typically the code.
For info applications that want smaller amounts of files, there is a new derivative version of QR Code named Micro QR Signal which can encode up to thirty five numeric digits within less space compared to a corresponding QR Code. They have four different square sizes: 11 by eleven, 13 by tough luck, 15 by fifteen and 17 a 17. Each size requires a 2 cell quiet region around the whole symbol. It is made up of only 1 locater pattern, with limited clock pattern in addition to format information.
Files Density and Problem Correction
Data Matrix has an obvious data density advantage over QR Code. This is especially true for more compact levels of user data. Verfahrensdokumentation Vorlage for this is the fact of which it has fewer fixed cell places. It does not devote the maximum amount of area for finder patterns, and contains simply no format information. Mini QR Code was created to address the files density issue and even is comparable inside size to typically the Data Matrix regarding this data content.
