Nanohmics has adapted plenoptic imaging technology to a wide range of applications, from wavefront sensing to three-dimensional (3D) imaging of air flow in a supersonic wind tunnel. Whereas a conventional camera captures a simple two-dimensional (2D) image of a scene, a plenoptic camera captures a richer, more complete set of information such as the direction of light propagation. The combined scene data approximates the plenoptic function – the omnidirectional radiance emitted by a scene – which is used to computationally reconstruct details of the scene such as its 3D geometry. Nanohmics’ innovative computational algorithms reconstruct the density variations caused by shock waves and other aerodynamic phenomena.
Nanohmics is developing plenoptic imaging methods to elucidate vital wind tunnel parameters of velocity, pressure and temperature. Plenoptic imaging uses microlens arrays to collect the full light field of a scene which enables acquisition of instantaneous three dimensional data.