In optical imaging, the resolution of the imaging system is not only limited by the aperture and imperfection of the lens, but also by the CCD nonzero pixel size and separation between the two consecutive pixels. We deal only with the geometric superresolution and assume that the size of the CCD pixels is much smaller in comparison with the separation between the pixels. The separation between the pixels limits the resolution of the CCD camera. Our object is to address this problem. In the proposal, we focus on exceeding the geometric resolution with a new approach in which no moving element of the imaging system is used, but only a mask is placed at the Fourier transform plane. This mask encodes the input data. The encoded image is captured by the CCD. The captured image is then Fourier transformed and a decoding mask is used to nullify the effect of undersampling by the CCD. Mathematical modeling and simulation in one dimension are presented.
© 2010 Optical Society of AmericaFull Article | PDF Article
Jonathan Solomon, Zeev Zalevsky, and David Mendlovic
Appl. Opt. 44(1) 32-40 (2005)
Alexander Zlotnik, Zeev Zalevsky, and Emanuel Marom
Appl. Opt. 44(18) 3705-3715 (2005)
Zeev Zalevsky and Alexander Zlotnik
Opt. Express 13(24) 9858-9868 (2005)