Experimental evidence for spatial stabilization of deep-turbulence-induced anisoplanatic blur.

We present field-experiment support for the feasibility of post-detection restoration when imaging through deep turbulence characterized by extreme anisoplanatism. Short-exposure images of point-like and minimally extended objects (MEOs) were collected, viewed through a 5.1-kilometer atmospheric path producing isoplanatic angles roughly 1/15 the camera diffraction-limited angular resolution.

Silhouette estimation.

Silhouettes arise in a variety of imaging scenarios. Pristine silhouettes are often degraded via blurring, detector sampling, and detector noise. We present a maximum a posteriori estimator for the restoration of parameterized facial silhouettes.

Overcoming turbulence-induced space-variant blur by using phase-diverse speckle.

Space-variant blur occurs when imaging through volume turbulence over sufficiently large fields of view. Space-variant effects are particularly severe in horizontal-path imaging, slant-path (air-to-ground or ground-to-air) geometries, and ground-based imaging of low-elevation satellites or astronomical objects. In these geometries, the isoplanatic angle can be comparable to or even smaller than the diffraction-limited resolution angle.