Scientists, including one of Indian
origin, have developed a new technology that may help archaeologists look into
antique books without touching them. Researchers tested a prototype of the
system on a stack of papers, each with one letter printed on it. The system was
able to correctly identify the letters on the top nine sheets. The Metropolitan
Museum in New York showed a lot of interest in this, because they want to, for
example, look into some antique books that they don’t even want to touch. Researchers
said that the system could be used to analyse any materials organized in thin
layers, such as coatings on machine parts or pharmaceuticals. The researchers
developed the algorithms that acquire images from individual sheets in stacks
of paper, and interprets the often distorted or incomplete images as individual
letters. The system uses terahertz radiation, the band of electro-magnetic
radiation between microwaves and infrared light, which has several advantages
over other types of waves that can penetrate surfaces, such as X-rays or sound
waves.
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