4 ms·

Can you get an HR reading from a webcam 200 meters away (about 2 football fields) and through clothing?

• spyder 7y ago
  Probably with a good lens.
  • deepnotderp 7y ago
    The military and various intelligence agencies have done an extraordinary amount of research on ultra-long distance facial recognition, and it turns out that it requires gigantic, super expensive lenses from a long distance. This method is much easier.
    • 2_listerine_pls 7y ago
      flat lenses already exist.
  • nashashmi 7y ago
    Even if the face is covered?