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takyon writes:

A new camera can distinguish layers of ink hidden by several layers of ink and paper, and could also be used to analyze paintings:

MIT researchers and their colleagues are designing an imaging system that can read closed books. In the latest issue of Nature Communications, the researchers describe a prototype of the system, which they tested 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," says Barmak Heshmat, a research scientist at the MIT Media Lab and corresponding author on the new paper. He adds that the system could be used to analyze any materials organized in thin layers, such as coatings on machine parts or pharmaceuticals.

Also at TechCrunch.

Terahertz time-gated spectral imaging for content extraction through layered structures (open, DOI: 10.1038/ncomms12665) (DX)

Original Submission

1. "takyon" - https://soylentnews.org/~takyon/
2. "distinguish layers of ink" - http://news.mit.edu/2016/computational-imaging-method-reads-closed-books-0909
3. "TechCrunch" - https://techcrunch.com/2016/09/09/judge-a-book-through-its-cover-with-this-terahertz-camera-setup/
4. "Terahertz time-gated spectral imaging for content extraction through layered structures" - http://www.nature.com/ncomms/2016/160909/ncomms12665/full/ncomms12665.html
5. "DX" - http://dx.doi.org/10.1038/ncomms12665
6. "Original Submission" - https://soylentnews.org/submit.pl?op=viewsub&subid=15809

printed from SoylentNews, Terahertz Imaging System Can "Read" Closed Books on 2023-05-26 12:45:52