Light, in fact, travels deep inside the body. You can try this experiment with your smartphone flash – a huge amount of light can traverse deep into the body. And it is both non-ionizing (400-1100 nm), and inexpensive to produce, control and sense.

Most pass-through photons are scattered, with an average of 10 scattering events per mm. By 50mm, a photon could face an average of 500 scattering events! If we wanted to use light for imaging, we have a large-scale inverse problem with low SNR.

Expeditions is developing a whole new class of imaging techniques to invert the scattering phenomena. Labeled Computational Photo-scatterography, the new methods combine sensing, analog and algorithmic innovations for a new generation of computational bio-imaging.