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Opto-Electronic Processing Image Group

Optical and Geometrical Superresolution

Superresolution is one of the most fascinating and applicable fields in optical data processing. The urge to obtain highly resolved images using low quality imaging optics and detectors is very appealing. The field of superresolution may be categorized into two groups: diffractive and geometrical superresolution.

The first one deals with overcoming the resolution limits dictated by the diffraction laws and are related to the numerical aperture of the imaging lens.

The second field overcomes the limitation determined by the geometrical structure of the detector array. The improvement is thus made at the price of sacrificing unused degrees of freedom such as time, wavelength, polarization or field of view depending on the a priori available information about the object to be imaged. The development is of special interest inside the group.

optical superresolution

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