Super-resolution imaging using the spatial-frequency filtered intensity   fluctuation correlation
  We report an experimental demonstration of a nonclassical imaging mechanism with super-resolving power beyond the Rayleigh limit. When the classical image is completely blurred out due to the use of a small imaging lens, by taking advantage of the intensity fluctuation correlation of thermal light, the demonstrated camera recovered the image of the resolution testing gauge. This method could be adapted to long distance imaging, such as satellite imaging, which requires large diameter camera lenses to achieve high image resolution. 
Jane Sprigg, Tao Peng, Yanhua Shih
physics.optics quant-ph