Super Resolution Imaging Methods for Exceeding the Diffraction Limit

We present new super resolution imaging methods for exceeding the diffraction limit, which is the fundamental limitation on the spatial resolution of any imaging system. This limitation stems from the physical nature of the optical waves. Super resolution techniques involve resolution enhancement of an image beyond this limitation. Super resolution methods are based on the understanding that high resolution spatial distribution can be obtained, if a priori information on the object exists. By utilizing this information, one may properly sacrifice it in order to achieve gain in the spatial domain. 

In our research we present super resolution methods that use either the time domain or the field of view domain.  In time multiplexing super resolution it is assumed that the object is stationary during the imaging process. Thus, it is possible to capture a sequence of images, and from them to extract the super resolution image. In field of view multiplexing it is assumed that the object is restricted in size, and does not fill the entire field of view. Using this knowledge, the high resolution data can be shifted to unused parts of the field of view, and pass through the system aperture.

* The work was carried out towards the Ph.D. degree in the Faculty of Engineering, Bar-Ilan University, with the supervision of Prof. Zeev Zalevsky