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Machine vision provides a cost-effective plastic sorting system

The plastic recycling industry needs to precisely separate the plastic by category. The purity of each plastic group (PETE, PVC, PP, etc) has a direct correlation to the refund money. Because the product is not consistent throughout the manufacturing industry, manual sorting tasks are performed, but there is a real automation need. See how combining a special lighting technique, a specific camera acquisition mode, the processing of image in color space, and a well synchronized rejection device from National Instruments acts as a viable solution.
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The existing techniques for plastic sorting include using x-rays and infrared spectrometers. The advantages of these techniques are to determine the nature of the plastic by the signature in the various wavelengths at a molecular level. But the technology is complex and expensive. The advantage of using machine vision in the visible light domain is a low cost with the capability of using standard machine vision algorithms.

 

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indicates a sponsored article that was submitted directly to this web site by the supplier, and was not handled by the PW editorial staff. Packaging World may share your contact information with our sponsors, as detailed in our Privacy Policy. Packaging World will not share your information with a sponsor whose content you have not reviewed.