Proprietary noise reduction and phase correlation and correction processing allows for extremely high resolution imaging using a distributed array of relatively low-tech sensors 

Opportunities and Challenges of Intensity Correlating Imaging:



• Does not require the propagation of collected light beams to combiner units. Routing optics and beam combiners are eliminated.

​

• Does not require nanometer level control of nor knowledge of the relative positions of the optical components.

​​

• SNR does not suffer from beam splitting and the throughput losses that plague amplitude interferometry.
   

• ICI does not require diffraction limited optics, since the sole purpose of each telescope is to place photons onto a photo detector.

​

• ICI is insensitive to atmospheric turbulence and therefore can be used by ground based, as well as space based facilities.

​

• Estimating coherence magnitude from intensity cross correlations has low SNR -> Very long averaging times.*

​

• Coherence phase must be reconstructed in order to compute the image. (very large dimension, highly nonlinear)*

​

*Recent advances in phase retrieval solve both problem