full transcript

From the Ted Talk by Gregory Heyworth: How I'm discovering the secrets of ancient texts

Unscramble the Blue Letters


So how does multispectral imaging actually work? Well, the idea behind multispectral imaging is something that anyone who is familiar with infrared night vision goggles will immediately appreciate: that what we can see in the vilsibe srtupcem of light is only a tiny fraction of what's actually there. The same is true with ivslibnie writing. Our system uses 12 wavelengths of light between the ultraviolet and the infrared, and these are shown down onto the manuscript from above from banks of LEDs, and another multispectral light suorce which comes up through the individual leaves of the manuscript. Up to 35 images per sequence per leaf are ieagmd this way using a high-powered digital camrea equipped with a lens which is made out of qrautz. There are about five of these in the world. And once we capture these images, we feed them through statistical algorithms to further ecnnhae and clarify them, using software which was originally designed for satellite images and used by people like geospatial seicsttnis and the CIA.

Open Cloze


So how does multispectral imaging actually work? Well, the idea behind multispectral imaging is something that anyone who is familiar with infrared night vision goggles will immediately appreciate: that what we can see in the _______ ________ of light is only a tiny fraction of what's actually there. The same is true with _________ writing. Our system uses 12 wavelengths of light between the ultraviolet and the infrared, and these are shown down onto the manuscript from above from banks of LEDs, and another multispectral light ______ which comes up through the individual leaves of the manuscript. Up to 35 images per sequence per leaf are ______ this way using a high-powered digital ______ equipped with a lens which is made out of ______. There are about five of these in the world. And once we capture these images, we feed them through statistical algorithms to further _______ and clarify them, using software which was originally designed for satellite images and used by people like geospatial __________ and the CIA.

Solution


  1. invisible
  2. scientists
  3. source
  4. quartz
  5. spectrum
  6. imaged
  7. visible
  8. camera
  9. enhance

Original Text


So how does multispectral imaging actually work? Well, the idea behind multispectral imaging is something that anyone who is familiar with infrared night vision goggles will immediately appreciate: that what we can see in the visible spectrum of light is only a tiny fraction of what's actually there. The same is true with invisible writing. Our system uses 12 wavelengths of light between the ultraviolet and the infrared, and these are shown down onto the manuscript from above from banks of LEDs, and another multispectral light source which comes up through the individual leaves of the manuscript. Up to 35 images per sequence per leaf are imaged this way using a high-powered digital camera equipped with a lens which is made out of quartz. There are about five of these in the world. And once we capture these images, we feed them through statistical algorithms to further enhance and clarify them, using software which was originally designed for satellite images and used by people like geospatial scientists and the CIA.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
multispectral imaging 5
multispectral light 2
dead sea 2
oldest book 2


Important Words


  1. algorithms
  2. banks
  3. camera
  4. capture
  5. cia
  6. clarify
  7. designed
  8. digital
  9. enhance
  10. equipped
  11. familiar
  12. feed
  13. fraction
  14. geospatial
  15. goggles
  16. idea
  17. imaged
  18. images
  19. imaging
  20. immediately
  21. individual
  22. infrared
  23. invisible
  24. leaf
  25. leaves
  26. leds
  27. lens
  28. light
  29. manuscript
  30. multispectral
  31. night
  32. originally
  33. people
  34. quartz
  35. satellite
  36. scientists
  37. sequence
  38. shown
  39. software
  40. source
  41. spectrum
  42. statistical
  43. system
  44. tiny
  45. true
  46. ultraviolet
  47. visible
  48. vision
  49. wavelengths
  50. work
  51. world
  52. writing