Supervised Training; Examples Of Plain Text Applications - Siemens SIMATIC MV440 Operating Instructions Manual

Image processing
4.3 Optical character recognition with "Text-Genius" and "Text-Genius Plus" (SIMATIC MV440 only)
● You can vary characters by creating your own fonts in the reader.
● Multiple styles can also be saved for each character.
● Up to five user fonts can be used in the reader.
● A wide range of standard fonts are available as a basis.
● Specific font creation ensures an optimal distinction between characters which are hard
to distinguish.
● Excellent performance:
– With 300 items/min: Up to 150 isolated characters + DMC per item
– With up to1000 items/min: Up to 24 isolated characters per item
● High read reliability with very good print quality:
– > 99.5 % with 24 isolated characters per item
– > 99.5 % with 150 isolated characters with DMC match (per item)
● Optimization of custom fonts by supervised training in processing mode.
4.3.4

Supervised training

The Text Genius Plus character recognition supports process optimization through
supervised training. For this, character forms which were detected with less than optimal
quality are recorded in processing mode. The recorded data can be used to improve custom
fonts and optimize their reading reliability.
4.3.5

Examples of plain text applications:

The following examples illustrate applications that can be solved with the "Text Genius"
license and how some of the functions can be configured.
Prerequisites
● SIMATIC-MV440 Code Reader (not SIMATIC MV420!)
● Firmware version V5.0 or higher (older versions can be upgraded)
● The Text Genius or Text-Genius Plus license must be have been transferred to the
reader (see "Transferring optional licenses (Page 142)" for more information)
Application 1: Read single-line plain text on various materials
1. Select a program or the template from the "Programs" task.
2. Add a new OCR step.
3. In the "Read" tab in the image displayed, set the region of interest (ROI) containing the
text to be read in this OCR step.
4. Adjust the read settings to the image details.
5. Press the "Update" button on the "Read" tab in Image Control to briefly check whether
your settings are correct.
If the settings are correct, a read result will be displayed.
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SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06