Research suggests multi-contrast X-ray imaging could find hidden threats at airports
![Advanced multi-contrast X-ray imaging at airports used to find hidden threats The new security scanning technique combines attenuation and dark-field x-ray imaging to create multi-contrast images, and detects threatening materials using machine learning](/sites/default/files/styles/content_banner/public/2024-05/Low-Res_Toiletry%20Bag%20Combined.png?h=ba8a9330&itok=Y0W2OQxD)
The new security scanning technique combines attenuation and dark-field x-ray imaging to create multi-contrast images, and detects threatening materials using machine learning. Image: Thomas Partridge, UCL
Research conducted at UCL shows that multi-contrast images, generated by combining different x-ray imaging technologies like attenuation and dark field with machine learning, can improve the detection of threatening materials.
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