## ìBlindî deconvolution solves for both object f(r) and PSF h(r) simultaneously.

- Ill-posed inverse problem.
- Under ñ determined: 1 measurement, 2 unknowns

## Uses Physical Constraints.

- f(r) & h(r) are positive, real & have finite support.
- Finite support reduces # of variables (symmetry breaking)

- h(r) is band-limited ñ symmetry breaking

- f(r) & h(r) are positive, real & have finite support.

## a priori information - further symmetry breaking.

- Noise statistics
- PSF knowledge
- Object & PSF parameterization
- Multiple Frames:
- Same object, different PSFs.
- N measurements, N+1 unknowns.

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