Vision sensor supports high-speed optical character recognition

January 17, 2013 // By Julien Happich
The vision sensor EyeSens OCR by EVT allows users to verify a whole range of characters, reading of directly labeled characters under difficult conditions such as characters on changing backgrounds, characters on reflective backgrounds or changing shapes of characters.

With a rate of 102 images per second, the tool searches, recognizes and reads the characters automatically in the image area. Subsequently the number of characters as well as their quality characteristics are displayed, no matter if the characters are rotated, mirrored or inverted.

The system recognizes even characters, which are hard to identify and reads even damaged, blurred, contorted or low-contrast characters without any difficulty. Even dot-peened or dotted writing can be read with the EyeSens OCR sensor. Users can determine if for example characters which are dirty or difficult to read should be read with the OCR/OCV command or if products with such printings should be sorted out. In order to read the characters the system has to be configured only once. A window is dragged over the writing in the configuration mode and the software extracts every single character automatically in no time. So the OCR/OCV is decoded character by character. The result is transformed into the desired data format and is transferred to a data memory or to the system control.

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