With hyperspectral imaging, photographers can obtain super fine detailed images, capturing the spectrum for each pixel in an image of a scene. This technology has wide reach and is being applied in fields such as military combat, astronomy, agriculture, biomedical imaging and geoscience. Scientists, for instance, rely on hyperspectral imaging to observe and analyze materials for mining and geology, or for various applications in the medical field. However, hyperspectral imaging systems are expensive — ranging from $25,000 to $100,000 — and require complex specialized hardware to operate. A team of computer scientists from KAIST, South Korea, and Universidad de Zaragoza, Spain, has devised a way for low-cost accurate hyperspectral imaging, ridding of expensive equipment and complex coding. This novel, compact single-shot hyperspectral imaging method captures images using a conventional DSLR camera equipped with just an ordinary refractive prism placed in front of the lens. The new, user-friendly method was tested on a variety of natural scenes, and the results, according to the researchers, compared well with current state-of-the-art hyperspectral imaging systems, achieving quality images without compromising accuracy. The team will present their new method at SIGGRAPH Asia 2017 in Bangkok, 27 November to 30 November. This annual conference and exhibition showcases the world’s leading professionals, academics and creative minds at the forefront of computer graphics and interactive techniques. “These hyperspectral imaging systems are generally built for specific purposes such as aerial remote sensing, or military applications, and as such they are not affordable nor practical for ordinary users,” said Min… [Read full story]
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