Light trick helps you peek around corners

• Autores: Douglas Heaven
• Localización: New scientist, ISSN 0262-4079, Nº. 3147, 2017, pág. 9
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A team at the Massachusetts Institute of Technology has figured out how to use changes in reflected light pooling on the floor at the base of a wall to trace the paths of people hidden from view in an adjacent room. Katie Bouman and her colleagues realised the variations in a pool of light by a floor-level edge contained information about the hidden objects reflecting that light. The trick is to track tiny variations in the colour of light while a similar technique lets phone cameras detect your pulse by detecting fluctuations in skin tone.