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How Multispectral and Hyperspectral Imaging are Improving Recycling

Author: Geralyn Miller
Monday, September 25, 2017
A new generation of multispectral and hyperspectral cameras is increasing the purity of many recycled materials to close to 100%. These cameras divide light into hundreds of narrow bands over a continuous range that spans the electromagnetic spectrum. The cameras collect hundreds of data points per pixel and combine these to generate a unique spectral signature (also called a fingerprint) for each material based on its chemical composition. Read how these systems are being used to improve the sorting of two of the most common and difficult-to-sort waste materials—plastics and papers.
File: Imaging_Improving_Recycling.pdf (317.98 KB)
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