Super-resolution by pupil plane phase filtering

Pramana

N Reza1¹  L N Hazra1¹ 

[1] Department of Applied Optics and Photonics, University of Calcutta, 92 A.P.C. Road, Kolkata 700 009, India$$

关键词: Super-resolution;    high-resolution imaging;    pupil plane filtering;    phase filters;    global optimization;    evolutionary programming;    genetic algorithm.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Resolution capability of any optical imaging system is limited by residual aberrations as well as diffraction effects. Overcoming this fundamental limit is called super-resolution. Several new paradigms for super-resolution in optical systems use ‘a posteriori’ digital image processing. In these ventures the three-dimensional point spread function (PSF) of the lens plays a key role in image acquisition. A straightforward tailoring of the PSF can be performed by appropriate pupil plane filtering. With a brief review of the state-of-art in this research area, this paper dwells upon the inverse problem of global optimization of the pupil function by phase filtering in accordance with the desired PSF.

【 授权许可】

Unknown