A typical visual inspection device can only scan one color, and a device using Hyperspectral Imaging (HSI) technology can distinguish all the spectra in each pixel, and has the superior ability to recognize objects according to color features. HSI technology has been widely used on satellites in the past. Because of the unique spectrum of diseased tissues and cells, scientists have been trying to apply HSI to the medical field. The National Institute of Standards and Technology (NIST) website reported on June 12, 2012 that research conducted by scientists at the institute will make HSI instruments and devices better used in the medical field.
Research team leader Nese physicist Jeeseong Hwang said, “Whenever you let a machine scan something, you need to make sure it is looking for what you want, and you have to make sure that the image analysis algorithm used can A set of data on multiple colors extracts the correct color information. We decided to create a method for calibrating HSI devices and test their algorithms.†Its team members are usually used to create genes in genetic research. The DNA array, called the "Microarrayer" (this device is capable of arranging hundreds of tiny sample droplets in a specific area of ​​the surface of the microscope slide, hence the name) Modifications, programming, and then selecting different shades of chemicals on the slide surface, the results are somewhat like dot-matrix printing, used to calibrate HSI devices and image analysis algorithms. “Scientists and engineers can customize such slides, and the unique colors on the slides accurately represent the HSI device's ability to identify cells that are like a particular 'chemical makeup' (determined by cell color), Hwang said. “This is a particularly good way to ensure that the HSI device works correctly on the patient so that the surgeon can see the entire or diseased tissue of a tumor.â€
The study is part of a large-scale NIST "evaluation and validation of optical medical imaging equipment" study published in the Biomedical Optics Express special issue.
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