Dual-camera system for high-speed imaging in particle image velocimetry
  Particle image velocimetry is an important technique in experimental fluid mechanics, for which it has been essential to use a specialized high-speed camera. However, the high speed is at the expense of other performances of the camera, i.e., sensitivity and image resolution. Here, we demonstrate that the high-speed imaging is also possible with a pair of still cameras. 
K. Hashimoto, A. Hori, T. Hara, S. Onogi, H. Mouri
physics.flu-dyn