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Pharmaceutical & Medical Packaging News, September/October 2015

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29 September/October 2015 Pharmaceutical & Medical Packaging News • pmpnews.com segmenter finds each letter based on skew, min/max height, min/max width, minimum aspect ratios, angle/skew, and other characteristics that define the font. Finally the charac- ters are trained so they can be recognized. To improve read rates, the segmentation tool also provides a noise filter, stroke width filter, compensation for changing lighting condi- tions, and automatic character scaling. This all sounds quite complicated, but with auto-tune capability, operator input is minimized to placing a box around each string and entering in the characters. The auto-tune function then dramatically decreases the time it takes to set up the tool by acquiring a sample image and automatically adjusting the tool to its optimal segmentation parameters which otherwise would be done manually. While finding the segmentation parameters auto-tune also trains the characters at the same time. Vision system suppliers have also made eforts to sim- plify the process of implementing vision systems for UDI applications and validating them to GAMP standards. For example, an out-of-the-box solution for UDI applica- tions can read both 1-D and 2-D codes and text and can dermal/ transdermal ophthalmic pulmonary ear/ nose/ throat parenteral Booth 4C40 Exhibitor & Speaker An audit server runs on a PC and tracks signifcant events on the camera. Vision system suppliers have made efforts to simplify the process of implementing vision systems for UDI applications and validating them to GAMP standards.

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