Image synthesis from a series of coherent frames of pupil intensity

James D. Phillips; Stephen C. Cain

doi:10.1117/12.727198

4 September 2007 Image synthesis from a series of coherent frames of pupil intensity

James D. Phillips, Stephen C. Cain

Proceedings Volume 6712, Unconventional Imaging III; 671207 (2007) https://doi.org/10.1117/12.727198
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Since it is known that the aperture of an imaging system limits spatial its resolution, it is desirable to form larger apertures. By taking advantage of the coherence properties of laser light, it is possible to form an optical synthetic aperture array from many smaller, monolithic apertures. By doing this, one can expect to obtain higher spatial resolution than from existing monolithic apertures. Since it is difficult to recover absolute phase of an optical field, it is desirable to form the synthetic aperture without interfering the light from the sub-apertures. This paper demonstrates a method of forming images using pupil plane intensity measurements of coherently illuminated scenes; a low resolution image will also be used to supply a starting estimate for the algortihm. From this data model, a maximum likelihood estimator is formed.

Citation Download Citation

James D. Phillips and Stephen C. Cain "Image synthesis from a series of coherent frames of pupil intensity", Proc. SPIE 6712, Unconventional Imaging III, 671207 (4 September 2007); https://doi.org/10.1117/12.727198

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