Optimal design of Toraldo super-resolving filters

L. N. Hazra; N. Reza

doi:10.1117/12.858883

25 August 2010 Optimal design of Toraldo super-resolving filters

L. N. Hazra, N. Reza

Proceedings Volume 7787, Novel Optical Systems Design and Optimization XIII; 77870D (2010) https://doi.org/10.1117/12.858883
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Pupil plane filtering provides a convenient technique for modifying the point spread function. Such modifications are used in many practical applications that require enhancement of selective frequency band in images. Also, in many new imaging paradigms, acquisition of 3D image information calls for tailoring of the 3D point spread function. This can be achieved by suitable pupil plane filtering, preferably by phase filters. By using a pupil plane filter with an array of concentric annuli, the point spread function can be tailored in a fashion such that a narrow central lobe is surrounded by neighboring lobes of low amplitude, with one or more lobes of high amplitude spaced far away from the center. In our study we intend to explore the use of phase annuli as pupil filters in tailoring of both transverse and axial resolution. Determination of such phase filters in accordance with a set of prespecified requirements for amplitude/intensity distribution around the focus constitutes a problem of nonlinear optimization. This paper reports some results of our preliminary investigations on an application of evolutionary programming in solving this problem to obtain globally or quasi-globally optimum solutions.

Citation Download Citation

L. N. Hazra and N. Reza "Optimal design of Toraldo super-resolving filters", Proc. SPIE 7787, Novel Optical Systems Design and Optimization XIII, 77870D (25 August 2010); https://doi.org/10.1117/12.858883

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available